C111123313121111121111331333133313331333231311331333132233132333132221123221   >>    C11112331312111112111133133313331333133323131133133313223313233313222112322   <<    C111123313121111121111331333133313331333231311331333132233132333132221123223   >>      C111123313121111121111331333133313331333231311331333132233132333132221123222   >>