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: Plasma ICP is more suitable for rapid multielemental analysis than flame atomic absorption methods because: 
 Options:  <1> The linearity interval is not wide, which allows for very sensitive analyzes. <2> The ICP has several possibilities to introduce the sample using different types of nebulizers. <3> They use two photomultiplier tubes, one for the ultraviolet region and the other for the visible one. <4> It has load-coupled silicon solid-state detectors that allow simultaneous monitoring of a large number of lines, reducing analysis time, sample volume and improving detection limits. <5> It is not correct, because with the ICP plasma, multielemental analysis can not be done.

Ex Output:
4


Ex 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.

Ex Output:
4


Ex Input:
Question: The antitumor agent cis-platinum: 
 Options:  <1> It is a flat square complex of Pt (II) with 2 molecules of ammonia and 2 chloride anions located in cis. <2> It is a flat square complex of Pt (IV) with 2 molecules of ammonia and 2 chloride anions located in cis. <3> It is an octahedral complex of Pt (IV) with 2 molecules of ammonia in cis and 4 chloride anions in the other positions. <4> It is an octahedral complex of Pt (II) with 2 chloride anions in cis and 4 ammonia molecules in the other positions. <5> It is an alkene with two Pt atoms in the two cis positions with respect to the double bond.

Ex Output:

1


