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12 69 12 70 12 71 12 72 12 73 12 74 12 75 12 76 12 77 12 78 12 79 1648 1647 1646 1645 1644 1643 1642 1641 1640 1639

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