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'.

Ex Input:
Question: An isolated carbon atom is: 
 Options:  <1> Diamagnetic <2> Ferromagnetic. <3> Paramagnetic, with an unpaired electron. <4> Paramagnetic, with two unpaired electrons. <5> Paramagnetic, with three unpaired electrons.

Ex Output:
4


Ex Input:
Question: The gluten-free diet is the cornerstone in the treatment of celiac disease. In this regard, there are numerous products manufactured with an uncertain composition in terms of gluten, often being misleading labeling. Of the following food groups, which one can we consider completely safe in the diet of a celiac patient? 
 Options:  <1> Canned meat: Hamburgers, meatballs. <2> Milk and derivatives: yogurt, cheese, cream, curd. <3> Sauces, condiments and food additives. <4> Integral pasta: noodles, macaroni, noodles. <5> Delicatessen products, sausages, pâtés.

Ex Output:
2


Ex Input:
Question: Phototherapy or light therapy is used for the treatment of: 
 Options:  <1> Crisis of panic. <2> Major depression <3> Bipolar disorder. <4> Post-traumatic stress disorder. <5> Seasonal affective disorder.

Ex Output:

5