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88 44 88 45 88 46 88 47 88 48 88 49 88 50 88 51 88 52 88 53 88 54 6644 6643 6642 6641 6640 6639 6638 6637 6636 6635

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