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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.
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You can use Console.WriteLine() to write to output, and see what is passed to you method. Last thing written is the one that failed. Took me a while to figure out why my regex was failing.