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 formation of the complex called Aminophylline improves the solubility of one of the following drugs: 
 Options:  <1> Theophylline <2> Digoxin <3> Ampicillin <4> Thioridazine. <5> Ciclosporin

Ex Output:
1


Ex Input:
Question: Affective lability is characterized because: 
 Options:  <1> Rapid changes in emotion occur and the person has difficulty controlling their emotions. <2> There is an elevation of the attentional affective threshold for negative stimuli. <3> There is a general feeling of being very well, very happy, although there are no causes that justify that state of mind. <4> The mood is predominantly downcast, pessimistic, sad. <5> There is an affective narrowing that restricts the emotional life.

Ex Output:
1


Ex Input:
Question: Which of the nucleophiles listed below has a greater reactivity to the bimolecular nucleophilic substitution reaction? 
 Options:  <1> Hydroxide. <2> I last. <3> Ammonia. <4> Water. <5> Acetic acid.

Ex Output:

2