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: For a drug to permeate through the cornea, you must: 
 Options:  <1> Be totally ionized. <2> Present a very high polarity. <3> Join the lysozyme that is present in the tear fluid. <4> Present a certain lipophilicity and a minimum degree of water solubility. <5> Have weak acid character.

Output: 4


Input: Consider Input: Question: One of the characteristics of the primary delirium experience is: 
 Options:  <1> Its greater modifiability, compared with the secondary one. <2> The primary obsessive concern of the patient to control reality. <3> That does not have its origin in a previous anomalous experience. <4> That is not maintained with intense conviction. <5> Which is plausible

Output: 3


Input: Consider Input: Question: Indicate the correct answer regarding the pancreas: 
 Options:  <1> Your alpha cells secrete insulin. <2> Its F cells produce somatostatin, which accelerates the secretion of glucagon. <3> Your alpha cells secrete glucagon, which increases the concentration of blood glucose. <4> It is an exclusively endocrine gland. <5> Its delta cells secrete pancreatic polypeptide.


Output: 3