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77 2 77 3 77 4 77 5 77 6 77 7 77 8 77 9 78 0 78 1 78 2 78 3 78 4 78 5 78 6 78 7 13927 13926 13925 13924 13923 13922 13921 13920 13919 13918 13917 13916 13915 13914 13913

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