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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 could simplify it yourself, you know?
But how??
I'm sorry for that.But it's a test for me.
Tanks.
Now it's done.Tank you!
Pretty much a duplicate of "Multiply" kata.
No random tests.
Why wouldn't subtraction work? Could you provide a test case in which it wouldn't work?
EDIT: nvm I know why now