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12 73 12 74 12 75 12 76 12 77 12 78 12 79 12 80 12 81 12 82 12 83 2179 2178 2177 2176 2175 2174 2173 2172 2171 2170

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