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: The CD40 ligand molecule (CD40L or CD154) is expressed in: 
 Options:  <1> Virgin T lymphocytes. <2> Activated T lymphocytes <3> NK lymphocytes. <4> Virgin B lymphocytes. <5> B activated lymphocytes.

Ex Output:
2


Ex Input:
Question: On the link between the nitrogenous base and the ribose of the nucleotides: 
 Options:  <1> The anomeric carbon of ribose is in alpha configuration. <2> It is an N-glycosidic bond. <3> It involves the C5' of the ribose. <4> It involves phosphate groups. <5> It is of a different nature for each nitrogenous base.

Ex Output:
2


Ex Input:
Question: Indicate the correct option regarding the quality of life of a patient who goes through three consecutive health conditions with utility values ​​of 0.45 the first, 0.68 the second and 0.95 the third: 
 Options:  <1> The best quality of life corresponds to the third state of health through which it passes. <2> The best quality of life corresponds to the first state of health through which it passes. <3> The quality of life depends on the time you are in each state of health. <4> The utility does not serve to assess the quality of life. <5> In all three states the quality of life is very bad because they are values ​​less than 1.

Ex Output:

1