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13 08 13 09 13 10 13 11 13 12 13 13 13 14 13 15 13 16 13 17 13 18 13 19 13 20 13 21 13 22 13 23 13 24 13 25 13 26 13 27 13 28 13 29 13 30 1897 1896 1895 1894 1893 1892 1891 1890 1889 1888 1887 1886 1885 1884 1883 1882 1881 1880 1879 1878 1877 1876

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