C111123313121111121111331333133313331333132233133313113313331333131331221   >>    C11112331312111112111133133313331333133313223313331311331333133313133122   <<    C111123313121111121111331333133313331333132233133313113313331333131331223   >>      C111123313121111121111331333133313331333132233133313113313331333131331222   >>