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90 07 90 08 90 09 90 10 90 11 90 12 90 13 90 14 90 15 90 16 90 17 6448 6447 6446 6445 6444 6443 6442 6441 6440 6439

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid