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77 3 77 4 77 5 77 6 77 7 77 8 77 9 78 0 78 1 78 2 78 3 2312 2311 2310 2309 2308 2307 2306 2305 2304 2303

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