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14 71 14 72 14 73 14 74 14 75 14 76 14 77 14 78 14 79 14 80 14 81 1972 1971 1970 1969 1968 1967 1966 1965 1964 1963

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