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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.
if n > 170, then it return NaN, using JS, with others numbers it works
not exactly like this one
fixed now its working correctly. also guys I don't know how to use Random.