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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.
"Non-negative" is not specified. I don't know exactly what "
a, repeated exactly-1times," looks like, but that's your problem. Closing this issue, because you made it a "your code" issue instead of a kata issue.You need to think of a more straight-forward way. Or a more complex one. Anyway, a way which does not turn out to be very, very, very ineffective one.