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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.
I don't think that this kata translates particularly well to Haskell, but that doesn't look broken to me. It's up to you to make that "work". See the sample tests for what you're asked to do.
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