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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.
you will know later to never change the inputs given.incase u need to then make a copy of them
The res variable is unnecessary I think since the signature variable can definitely be used for the tribonnaci operation and for the return with some rejigging