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41 7 41 8 41 9 42 0 42 1 42 2 42 3 42 4 42 5 42 6 42 7 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966

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