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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.
Thank you very much. I had a problem with counting [ and ] as iterations.
It would be good to have test case where both numbers are single digit number (e.g. 0 and 9). In my case it doesn't work but I passed tests.
This one is invalid. It will fail if last number have only one digit.
This one is invalid. It will fail if last number have only one digit.