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40 4 40 5 40 6 40 7 40 8 40 9 41 0 41 1 41 2 41 3 41 4 1916 1915 1914 1913 1912 1911 1910 1909 1908 1907

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