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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.
"Hey, clean code! Just a heads-up — if someone enters zero or negative values, this code still returns surface area and volume, which may not be realistic. Adding input validation could make it more robust
Shouldn't '147' also be a win pattern?