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51 8 51 9 52 0 52 1 52 2 52 3 52 4 52 5 52 6 52 7 52 8 52 9 53 0 53 1 53 2 53 3 53 4 53 5 53 6 53 7 53 8 53 9 54 0 54 1 54 2 54 3 54 4 54 5 54 6 54 7 54 8 1671 1670 1669 1668 1667 1666 1665 1664 1663 1662 1661 1660 1659 1658 1657 1656 1655 1654 1653 1652 1651 1650 1649 1648 1647 1646 1645 1644 1643 1642

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