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42 6 42 7 42 8 42 9 43 0 43 1 43 2 43 3 43 4 43 5 43 6 1901 1900 1899 1898 1897 1896 1895 1894 1893 1892

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