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60 8 60 9 61 0 61 1 61 2 61 3 61 4 61 5 61 6 61 7 61 8 61 9 62 0 62 1 62 2 62 3 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943 1942 1941 1940 1939

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