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62 7 62 8 62 9 63 0 63 1 63 2 63 3 63 4 63 5 63 6 63 7 63 8 63 9 64 0 64 1 64 2 64 3 64 4 64 5 64 6 64 7 64 8 64 9 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977

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