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: A 45-year-old patient with a moderate smoking habit, no drinker, no other history of interest who has been diagnosed with squamous carcinoma of the oropharynx cT1N2b. It is pending decision of treatment in committee. What infectious agent would you be interested in confusing before proposing the treatment? 
 Options:  <1> Helicobacter pylori. <2> Herpes Simplex virus type 2. <3> Human papilloma virus. <4> Epstein Barr virus. <5> Cytomegalovirus.

Ex Output:
3


Ex Input:
Question: The organometallic compounds are derivatives: 
 Options:  <1> With a radical nature. <2> With covalent bonds between carbon atoms and metal atoms. <3> With electronic deficit and electrophilic character. <4> Practically not reactive. <5> With essentially reducing character.

Ex Output:
2


Ex Input:
Question: Phosphatidylinositols: 
 Options:  <1> They are derivatives of glucocerebrosides. <2> They act as intracellular signals. <3> They are lysosomal lipids. <4> They are biological detergents. <5> They contain taurine or glycine.

Ex Output:

2