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72 5 72 6 72 7 72 8 72 9 73 0 73 1 73 2 73 3 73 4 73 5 11623 11622 11621 11620 11619 11618 11617 11616 11615 11614

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