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52 2 52 3 52 4 52 5 52 6 52 7 52 8 52 9 53 0 53 1 53 2 2144 2143 2142 2141 2140 2139 2138 2137 2136 2135

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