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13 01 13 02 13 03 13 04 13 05 13 06 13 07 13 08 13 09 13 10 13 11 1890 1889 1888 1887 1886 1885 1884 1883 1882 1881

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