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95 4 95 5 95 6 95 7 95 8 95 9 96 0 96 1 96 2 96 3 96 4 1971 1970 1969 1968 1967 1966 1965 1964 1963 1962

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