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10 80 10 81 10 82 10 83 10 84 10 85 10 86 10 87 10 88 10 89 10 90 1966 1965 1964 1963 1962 1961 1960 1959 1958 1957

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