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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.
That was no doubt the hardest Kata I have completed so far. Excellent job. The randomized test cases certainly kept me on my toes!
The problem description here leaves a lot out. It is unclear what exactly the program ought to do with examining the (thankfully well written) test cases.
The Python test cases are broken.