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: Sulfasalazine is used for the treatment of ulcerative colitis. It is a prodrug of 5-aminosalicylic acid that is activated by a process of: 
 Options:  <1> Hydrolysis of an ester. <2> Hydrolysis of an amide. <3> Oxidative dealkylation. <4> Reducing rupture of the azoderivative. <5> Aromatic hydroxylation.

Output: 4


Input: Consider Input: Question: Which of the following pairings between anticoagulant drug and mechanism of action is INCORRECT? 
 Options:  <1> Heparin - cofactor of antithrombin III. <2> Acenocoumarol - inhibits vitamin K epoxide reductase. <3> Dabigatran - inhibits thrombin. <4> Rivaroxaban - inhibits factor Xa. <5> Warfarin - inhibits the absorption of vitamin K.

Output: 5


Input: Consider Input: Question: Question linked to image nº2 A 65-year-old man with a personal history of chronic alcoholic liver disease in functional stage A of Child in treatment with ibuprofen due to low back pain, presents a picture of red blood hematemesis. Upon his arrival at the emergency room, he presented a blood pressure of 120/60 mm Hg. In the analytical sample, hemoglobin 10 gr / dL, platelets 250,000 / μL, urea 85 mg / dL and creatinine 1.1 mg / dL are the most important data. Urgent endoscopy is performed showing the image. Given these findings, what is the correct answer: 
 Options:  <1> It is only necessary to carry out transfusion of packed red cells and monitor the hemodynamic stability of the patient. <2> The endoscopic findings suggest a Forrest III classification. <3> The placement of bands is the endoscopic treatment of choice since it is a patient with liver disease. <4> It is necessary to perform an endoscopy at 12 o'clock to monitor the possibility of rebleeding in a systematic way. <5> It is necessary to perform endoscopic treatment with adrenaline 1: 10000 associated with the placement of an endoclip.


Output: 5