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15 72 15 73 15 74 15 75 15 76 15 77 15 78 15 79 15 80 15 81 15 82 2143 2142 2141 2140 2139 2138 2137 2136 2135 2134

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