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18 8 18 9 19 0 19 1 19 2 19 3 19 4 19 5 19 6 19 7 19 8 1945 1944 1943 1942 1941 1940 1939 1938 1937 1936

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