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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 1409 1408 1407 1406 1405 1404 1403 1402 1401 1400

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