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: Question linked to image n ° 16 Patient of 84 years who presents an ulcerated tumor lesion that shows in the scalp of more than 20 years of evolution. No palpable locoregional adenopathies. Obviously the lesion must be biopsied for diagnostic confirmation but, a priori, which of the following diagnoses seems most likely? 
 Options:  <1> Merkel cell tumor. <2> Basal cell carcinoma. <3> Squamous carcinoma <4> Amelanotic malignant melanoma. <5> Cutaneous B-cell lymphoma

Output: 2


Input: Consider Input: Question: If after establishing the confidence interval with respect to a difference between two independent means, we find that the zero value is not in the interval: 
 Options:  <1> We can not make any decision regarding the null hypothesis of equality of means. <2> We can not reject the null hypothesis of equality between population means. <3> We must reject the null hypothesis of equality between population means. <4> We accept the null hypothesis of equality between the population means. <5> We reject the alternative hypothesis of equality between population means.

Output: 3


Input: Consider Input: Question: The chemistry of diazonium salts provides the main synthetic method for preparing aryl fluorides by a process called: 
 Options:  <1> Reorganization of Claisen. <2> Gabriel's reaction. <3> Diazotization reaction. <4> Sandmeyer reaction. <5> Schiemann reaction.


Output: 5