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17 0 17 1 17 2 17 3 17 4 17 5 17 6 17 7 17 8 17 9 18 0 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973

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