In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.

Ex Input:
Question: In the technique of atomic absorption spectrometry, the use of an electrothermal atomizer instead of the flame provides: 
 Options:  <1> Greater accuracy <2> Greater precision. <3> Greater sample consumption <4> Longer analysis times. <5> Greater sensitivity

Ex Output:
5


Ex Input:
Question: One of the characteristics of the primary delirium experience is: 
 Options:  <1> Its greater modifiability, compared with the secondary one. <2> The primary obsessive concern of the patient to control reality. <3> That does not have its origin in a previous anomalous experience. <4> That is not maintained with intense conviction. <5> Which is plausible

Ex Output:
3


Ex Input:
Question: The coupling of a terminal alkyne with vinyl halide by palladium catalysis is known as the reaction of: 
 Options:  <1> Heck <2> Suzuki <3> Sonogashira. <4> Stille <5> Nicolaou

Ex Output:

3