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38 40 4 38 40 5 38 40 6 38 40 7 38 40 8 38 40 9 38 41 0 38 41 1 38 41 2 38 41 3 38 41 4 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968

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