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71 7 71 8 71 9 72 0 72 1 72 2 72 3 72 4 72 5 72 6 72 7 2249 2248 2247 2246 2245 2244 2243 2242 2241 2240

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