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87 7 87 8 87 9 88 0 88 1 88 2 88 3 88 4 88 5 88 6 88 7 2326 2325 2324 2323 2322 2321 2320 2319 2318 2317

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