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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.
My code works fine and get correct answers on my own machine, but not right on Kata.
Same code, same Python version 3, different platform, get different results, this is so strange!!