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11 95 11 96 11 97 11 98 11 99 12 00 12 01 12 02 12 03 12 04 12 05 1969 1968 1967 1966 1965 1964 1963 1962 1961 1960

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