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72 17 72 18 72 19 72 20 72 21 72 22 72 23 72 24 72 25 72 26 72 27 36772 36771 36770 36769 36768 36767 36766 36765 36764 36763

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