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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.
Creative!
Python's string objects are immutable, so each concatenation generates a new string instead of modifying the existing one in place. Using f-strings is twice as fast.
you cold have used chr() function too in case you didn't wan't to import ascii_lowercase