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12 18 12 19 12 20 12 21 12 22 12 23 12 24 12 25 12 26 12 27 12 28 1944 1943 1942 1941 1940 1939 1938 1937 1936 1935

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