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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.
Wait until you learn about the secret
coffeePython module that makes coffee for you!The first value is a output of your program.
The first value in the error message is what your function returned, not the input. Not a kata issue.
Please read this: https://docs.codewars.com/training/troubleshooting