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13 32 13 33 13 34 13 35 13 36 13 37 13 38 13 39 13 40 13 41 13 42 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973

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