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13 74 13 75 13 76 13 77 13 78 13 79 13 80 13 81 13 82 13 83 13 84 1967 1966 1965 1964 1963 1962 1961 1960 1959 1958

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