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82 6 82 7 82 8 82 9 83 0 83 1 83 2 83 3 83 4 83 5 83 6 1677 1676 1675 1674 1673 1672 1671 1670 1669 1668

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