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15 96 15 97 15 98 15 99 16 00 16 01 16 02 16 03 16 04 16 05 16 06 1939 1938 1937 1936 1935 1934 1933 1932 1931 1930

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