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69 9 70 0 70 1 70 2 70 3 70 4 70 5 70 6 70 7 70 8 70 9 1938 1937 1936 1935 1934 1933 1932 1931 1930 1929

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