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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.
hello sir i am new in python please explain me portion after for loop
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This comment is hidden because it contains spoiler information about the solution
this is my only test case which is falling again and again
sir i am new in python may you please tell me what this is doing return ''.join(ans).lower() ?