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72 13 72 14 72 15 72 16 72 17 72 18 72 19 72 20 72 21 72 22 72 23 72 24 72 25 72 26 72 27 72 28 36745 36744 36743 36742 36741 36740 36739 36738 36737 36736 36735 36734 36733 36732 36731

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