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13 33 3 13 33 4 13 33 5 13 33 6 13 33 7 13 33 8 13 33 9 13 34 0 13 34 1 13 34 2 13 34 3 13 34 4 13 34 5 13 34 6 13 34 7 13 34 8 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