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77 7 77 8 77 9 78 0 78 1 78 2 78 3 78 4 78 5 78 6 78 7 2396 2395 2394 2393 2392 2391 2390 2389 2388 2387

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