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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 1898 1897 1896 1895 1894 1893 1892 1891 1890 1889

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