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65 6 65 7 65 8 65 9 66 0 66 1 66 2 66 3 66 4 66 5 66 6 66 7 66 8 66 9 67 0 67 1 1957 1956 1955 1954 1953 1952 1951 1950 1949 1948 1947 1946 1945 1944 1943

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