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32 9 33 0 33 1 33 2 33 3 33 4 33 5 33 6 33 7 33 8 33 9 1975 1974 1973 1972 1971 1970 1969 1968 1967 1966

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