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: Which of the following characteristics defines an endogenous depression? 
 Options:  <1> Its course is continuous. <2> There is an evening worsening. <3> There is an early awakening. <4> There is a good response to placebo. <5> A neurotic personality intervenes in the etiopathogenesis.

Ex Output:
3


Ex Input:
Question: The reaction conditions for transforming nonanamide into octanamine and carbon dioxide are: 
 Options:  <1> H2, metallic catalyst. <2> Excess of CH3I, K2 CO3. <3> Cl2, NaOH, H2O. <4> LiAlH4, diethyl ether and then hydrolysis. <5> CH2N2, diethyl ether.

Ex Output:
3


Ex Input:
Question: Spatial discrimination of tactile stimuli: 
 Options:  <1> It increases with the size of the receiving fields. <2> It increases if the convergence of the afferent pathways is large. <3> Increase if there is lateral inhibition <4> It is independent of the density of innervation. <5> It depends only on the type of activated receiver.

Ex Output:

3