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77 8 77 9 78 0 78 1 78 2 78 3 78 4 78 5 78 6 78 7 78 8 78 9 79 0 79 1 79 2 79 3 1703 1702 1701 1700 1699 1698 1697 1696 1695 1694 1693 1692 1691 1690 1689

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