Coordinate X: Y: Search

89 20 89 21 89 22 89 23 89 24 89 25 89 26 89 27 89 28 89 29 89 30 89 31 89 32 89 33 89 34 89 35 89 36 89 37 89 38 89 39 89 40 89 41 89 42 89 43 89 44 89 45 89 46 89 47 89 48 89 49 89 50 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