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39 37 39 38 39 39 39 40 39 41 39 42 39 43 39 44 39 45 39 46 39 47 37642 37641 37640 37639 37638 37637 37636 37635 37634 37633

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