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84 8 84 9 85 0 85 1 85 2 85 3 85 4 85 5 85 6 85 7 85 8 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960

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