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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.
This is realy confusing formulation.
If UDLR is just head rotation, without movements, than snake can rotate head to his neck and collide himself on next movement.
Are width and height values mixed up in details? Or sample represented column wise?