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39 5 39 6 39 7 39 8 39 9 40 0 40 1 40 2 40 3 40 4 40 5 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960

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