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45 1 45 2 45 3 45 4 45 5 45 6 45 7 45 8 45 9 46 0 46 1 1889 1888 1887 1886 1885 1884 1883 1882 1881 1880

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