Problem on the topic of numbers

Hello!

Against the background of yesterday's tasks, I post another one.

Once upon a time there were two wise men. Ivan and Kuzma. One day a mathematician came to them and said:
One of you (Ivan), I will tell the sum of three natural numbers. The second (Kuzma) is their work. Give me these numbers.
And here Vanya says: Kuzma! If your work is more than my sum, I will immediately call all the numbers. Alas, - answered Kuzma, - Work less.
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What are the numbers?