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85 4 85 5 85 6 85 7 85 8 85 9 86 0 86 1 86 2 86 3 86 4 1965 1964 1963 1962 1961 1960 1959 1958 1957 1956

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