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80 6 80 7 80 8 80 9 81 0 81 1 81 2 81 3 81 4 81 5 81 6 81 7 81 8 81 9 82 0 82 1 1735 1734 1733 1732 1731 1730 1729 1728 1727 1726 1725 1724 1723 1722 1721

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