Coordinate X: Y: Search

90 10 90 11 90 12 90 13 90 14 90 15 90 16 90 17 90 18 90 19 90 20 90 21 90 22 90 23 90 24 90 25 90 26 90 27 90 28 90 29 90 30 90 31 90 32 90 33 90 34 90 35 90 36 90 37 90 38 90 39 90 40 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966 1965 1964

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