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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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Super clever but the title had regex in it so....
When the mathematical answer is so obvious but you decide to cycle through all of the numbers after the given argument until it is a square -_-