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12 77 12 78 12 79 12 80 12 81 12 82 12 83 12 84 12 85 12 86 12 87 2190 2189 2188 2187 2186 2185 2184 2183 2182 2181

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