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73 37 73 38 73 39 73 40 73 41 73 42 73 43 73 44 73 45 73 46 73 47 36639 36638 36637 36636 36635 36634 36633 36632 36631 36630

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