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82 9 83 0 83 1 83 2 83 3 83 4 83 5 83 6 83 7 83 8 83 9 84 0 84 1 84 2 84 3 84 4 1650 1649 1648 1647 1646 1645 1644 1643 1642 1641 1640 1639 1638 1637 1636

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