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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! I spent several hours on fixing "Invaild tour moves" before I saw your comment.
Wish someone kind to fix this description.
This comment is hidden because it contains spoiler information about the solution
You should not use any of these characters even in your function name.
I think it is harder than a typical 5 kyu problem.