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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.
However, going North, then West, then South, then East... doesn't it mean that you just return exactly where you started so the final result for the easiest path should actually be [] ?