C111123313121111121111331333133313331333133313121111331311233132231   >>    C11112331312111112111133133313331333133313331312111133131123313223   <<    C111123313121111121111331333133313331333133313121111331311233132233   >>      C111123313121111121111331333133313331333133313121111331311233132232   >>