C31232233133313221211113313331333133313113311331333133313121111331311223132231   >>    C3123223313331322121111331333133313331311331133133313331312111133131122313223   <<    C31232233133313221211113313331333133313113311331333133313121111331311223132233   >>      C31232233133313221211113313331333133313113311331333133313121111331311223132232   >>