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40 5 40 6 40 7 40 8 40 9 41 0 41 1 41 2 41 3 41 4 41 5 41 6 41 7 41 8 41 9 42 0 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956 1955

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