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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Thanks for the link, I read the problem more carefully and was able to solve it
Why my code does not work there everything is correct and in IDE checked not 1 time and in codewars constantly subtracts 1 hits in the code though should not do it