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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.
This is true but not for the given test cases :)
Sorry I screwed up the kata :(, fixed it now though. Your solution should be correct if the test cases/solution was done correctly!