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'.

Input: Consider Input: Question: Glucagon increases the activity of: 
 Options:  <1> Protein kinase A. <2> Acetyl-CoA carboxylase. <3> Pyruvate kinase. <4> Glycogen synthase. <5> Fosfofructoquinasa-1.

Output: 1


Input: Consider Input: Question: Epidemiology allows early detection of changes in the incidence of a certain disease in the population. For this, the most correct thing is to use: 
 Options:  <1> The etiological investigation. <2> The description of the natural history of the disease. <3> Epidemiological surveillance. <4> The evaluation of the functioning of the services. <5> None of the previous answers is correct.

Output: 3


Input: Consider Input: Question: A procedure to identify health problems is through the agreement of people who have qualified information about the community. Two of the most frequently used techniques are: 
 Options:  <1> The questionnaire and the programs. <2> The techniques by indicators and by criteria. <3> The Delphi technique and the Nominal Group technique. <4> The questionnaire and the community forum. <5> All the previous answers are correct.


Output: 3