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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.
wrong answer.
pidgeyCalc(9, 3) ????
It should have a definition of 'Roman Numeral'. 'IIX' or 'IC' can be valid Roman numeral depending on definition, but it's not handeled in the test case or solutions.