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33 4 33 5 33 6 33 7 33 8 33 9 34 0 34 1 34 2 34 3 34 4 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977

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