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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.
Did you downvote my previous answer?
Most likely the tests are different, as easy as that: can't you just
console.log()the input?Then you have a problem with that test case: check your code.
Which case are you failing?
The difficulty of this isn't due to the programming, it's just the Maths behind it is difficult; The coding is relatively simple.