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'.

Example Input: Question: It has been proved that the dissolution speed of the solvate that is formed when the griseofulvin and the chloroform are associated, is: 
 Options:  <1> Less than the unsolvated form of the drug. <2> Limiting step of the disintegration of the tablets in which the drug is formulated. <3> Greater than the unsolvated form of the drug. <4> Limiting factor of the distribution of the drug to the aqueous sectors of the organism. <5> Same as the unsolvated form of the drug.
Example Output: 3

Example Input: Question: Regarding gastroesophageal reflux disease, which of the following statements is true? 
 Options:  <1> The intensity and frequency of heartburn has little relationship with the presence and severity of endoscopic esophagitis. <2> Most patients with gastroesophageal reflux disease have esophagitis at endoscopy. <3> Treatment with proton pump inhibitors usually achieves good control of symptoms but is not superior to placebo in the endoscopic cure of esophagitis. <4> Barrett's esophagus can progress to low-grade epithelial dysplasia, high-grade epithelial dysplasia, and finally squamous cell carcinoma of the esophagus. <5> Endoscopic screening and surveillance programs have unequivocally shown to be able to reduce mortality in patients with Barrett's esophagus.
Example Output: 1

Example Input: Question: The most common pancreatic cancer is: 
 Options:  <1> The intraductal mucinous papillary tumor. <2> Pancreatic neuroendocrine carcinoma. <3> The pancreatic cystadenocarcinoma. <4> The malignant insulinoma. <5> Ductal adenocarcinoma of the pancreas.
Example Output:
5