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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.
Because H3-G3, etc. is longer than 1. You can see that in the picture. It doesn't say each step is 1 unit, it says this:
An that means the innermost circle has a radius of 1, the next one a radius of 2, and so on.
There are no sample tests in JS so you have to go with "Attempt".
It's hard to answer without giving the solution away. Try to draw it and check.
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