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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.
Floating point values should be compared for approximate equality. See Docs.
Please use appropriate datatypes. The input should be a 3-tuple of numbers, not a string. Adding a secondary parsing task to the primary arithmetic one is not a good way to make a kata more interesting.
"Do one thing, and do it well."