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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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I am in the exact same position. I've tried counting up, counting down, seemingly all that I can think of.
Especially after trying a lot of things on your own, is good to check google as well from time to time :)
Please see if this helps: https://docs.codewars.com/training/troubleshooting#print-input