C111123313121111121111331333133313113313232123313331311331323233313132331   >>    C11112331312111112111133133313331311331323212331333131133132323331313233   <<    C111123313121111121111331333133313113313232123313331311331323233313132333   >>      C111123313121111121111331333133313113313232123313331311331323233313132332   >>