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12 65 12 66 12 67 12 68 12 69 12 70 12 71 12 72 12 73 12 74 12 75 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973

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