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10 72 10 73 10 74 10 75 10 76 10 77 10 78 10 79 10 80 10 81 10 82 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939

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