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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 your answers. I was trying various methods for solving this problem. And wondered about recursion.
Is there anyone who could make recursive solution for this case? I have tried but getting RecursionError, because of the limit.