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51 5 51 6 51 7 51 8 51 9 52 0 52 1 52 2 52 3 52 4 52 5 2191 2190 2189 2188 2187 2186 2185 2184 2183 2182

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