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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.
The cycle of paper beats scissors, which beats rock, which beats paper
Your level should be 3 at that test.
that means it isn't best practice :)
It is very clever, though.
Please read this: https://docs.codewars.com/training/troubleshooting
Because your code returns a list of strings instead of a list of numbers.