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71 6 71 7 71 8 71 9 72 0 72 1 72 2 72 3 72 4 72 5 72 6 2292 2291 2290 2289 2288 2287 2286 2285 2284 2283

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