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42 7 42 8 42 9 43 0 43 1 43 2 43 3 43 4 43 5 43 6 43 7 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988

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