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: It has been proven that amphetamines have reinforcing effects because: 
 Options:  <1> They are GABAergic agonists. <2> They are dopaminergic antagonists. <3> They are serotonergic antagonists. <4> They are dopaminergic agonists. <5> They are serotonergic agonists.

Output: 4


Input: Consider Input: Question: The INR (international normalized ratio) of a patient with chronic atrial fibrillation treated with Acenocoumarol is 4. This result indicates that: 
 Options:  <1> The appearance of ventricular arrhythmias should be controlled. <2> The patient is correctly anticoagulated. <3> Anticoagulation with heparin is more indicated. <4> There is a risk of thrombus formation. <5> Signs of bleeding should be assessed.

Output: 5


Input: Consider Input: Question: The human papilloma virus (HPV) is involved in the pathogenesis of: 
 Options:  <1> Cervical cancer <2> Endometrial cancer. <3> Ovarian cancer. <4> Breast cancer <5> Burkitt lymphoma.


Output: 1