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78 2 78 3 78 4 78 5 78 6 78 7 78 8 78 9 79 0 79 1 79 2 2180 2179 2178 2177 2176 2175 2174 2173 2172 2171

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