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81 2 81 3 81 4 81 5 81 6 81 7 81 8 81 9 82 0 82 1 82 2 2162 2161 2160 2159 2158 2157 2156 2155 2154 2153

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