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: An isolated carbon atom is: 
 Options:  <1> Diamagnetic <2> Ferromagnetic. <3> Paramagnetic, with an unpaired electron. <4> Paramagnetic, with two unpaired electrons. <5> Paramagnetic, with three unpaired electrons.

Ex Output:
4


Ex Input:
Question: Regarding vaccination with rubella vaccine in pregnant women, point out the correct answer: 
 Options:  <1> It should be encouraged as it is very convenient for Public Health. <2> It is the procedure of choice for the control of congenital rubella syndrome. <3> It is no longer considered as an indication of abortion. <4> It is allowed in the case of vaccines of strain RA 27/3, but not in the case of vaccines of the strain Cendehill. <5> It must be administered in conjunction with specific immunoglobulin

Ex Output:
3


Ex Input:
Question: What is the therapeutic objective of Covert Sensitization ?: 
 Options:  <1> Develop an attraction response to a stimulus that was previously a source of aversion. <2> Increase the tolerance to an aversive stimulus and reduce the emotional activation it produces. <3> Postpone immediate positive reinforcers of undesirable behaviors. <4> Develop an aversion response to a stimulus that was previously a source of attraction. <5> Mentally reinforce successful trials aimed at achieving objective behavior.

Ex Output:

4