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48 2 48 3 48 4 48 5 48 6 48 7 48 8 48 9 49 0 49 1 49 2 49 3 49 4 49 5 49 6 49 7 1903 1902 1901 1900 1899 1898 1897 1896 1895 1894 1893 1892 1891 1890 1889

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