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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 14 30 14 31 14 32 14 33 14 34 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983

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