Coordinate X: Y: Search

31 30 0 31 30 1 31 30 2 31 30 3 31 30 4 31 30 5 31 30 6 31 30 7 31 30 8 31 30 9 31 31 0 31 31 1 31 31 2 31 31 3 31 31 4 31 31 5 31 31 6 31 31 7 31 31 8 31 31 9 31 32 0 31 32 1 31 32 2 31 32 3 31 32 4 31 32 5 31 32 6 31 32 7 31 32 8 31 32 9 31 33 0 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974

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