C111123313121111121111331333133313331333132232233131133132233313112111   >>    C11112331312111112111133133313331333133313223223313113313223331311211   <<    C111123313121111121111331333133313331333132232233131133132233313112113   >>      C111123313121111121111331333133313331333132232233131133132233313112112   >>