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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 tests, you can only try your solutions with attempts.
More, same attempts one time may not pass due to CodeWars 12 seconds time exceed when other time be successful.