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14 19 14 20 14 21 14 22 14 23 14 24 14 25 14 26 14 27 14 28 14 29 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972

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