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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.
Note in the kata description that test cases can have capital letters.
Shouldn't you start at i = 3, since nothing under that would be divisible by 3 or 5?
Multiple of these test cases are simply wrong. I don't see how this kata has lasted so long without being fixed.
What?