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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.
Please read this paragraph first: https://docs.codewars.com/training/troubleshooting#post-discourse
Then this bullet point: https://docs.codewars.com/training/troubleshooting#.print-vs-return
And, finally, please read the whole artice and see if you find somethign helpful there.
Your folution is rejected because it does not return a valid answer. Fix it, and you will get your deserved honor points.
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