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'.

Example Input: Question: A homogeneous reaction between ideal gases that has reached chemical equilibrium can evolve (ie, move towards the formation of more reactants or products) in the following way if this equilibrium is altered: 
 Options:  <1> If the temperature is increased at constant pressure, it will go to where more moles will be produced. <2> If the pressure is increased to constant temperature it will go to where the volume is higher. <3> If an inert gas is added it will go to where this gas is consumed. <4> If a gas that participates in the reaction is added, it will go to where more gas is produced. <5> If the temperature is decreased, it will go to where the reaction is exothermic.
Example Output: 5

Example Input: Question: In the technique of atomic absorption spectrometry, the use of an electrothermal atomizer instead of the flame provides: 
 Options:  <1> Greater accuracy <2> Greater precision. <3> Greater sample consumption <4> Longer analysis times. <5> Greater sensitivity
Example Output: 5

Example Input: Question: The main indication for using 4 drugs in the initial treatment of tuberculosis is: 
 Options:  <1> Affectation of the central nervous system. <2> High prevalence of primary resistance to isoniazid. <3> Cavitated and extensive pulmonary tuberculosis with large bacillary load. <4> Disseminated tuberculosis associated with HIV infection. <5> Extrapulmonary tuberculosis in immunodepressed patients of any origin.
Example Output:
2