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84 6 84 7 84 8 84 9 85 0 85 1 85 2 85 3 85 4 85 5 85 6 1960 1959 1958 1957 1956 1955 1954 1953 1952 1951

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