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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.
No.
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Anything that isn't A-z
Your code takes too long to execute. You have to reduce your execution time to under 12 seconds. You need to find a more efiicient way of getting the answer.