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: The Aminoacyl-tRNAs: 
 Options:  <1> They are the precursors of the RANs. <2> They are enzymes that catalyze the synthesis of amino acids. <3> They are part of the ribosomes. <4> They are the tRNAs loaded with the amino acid specified by its anticodon sequence. <5> They are synthesized by RNA Polymerase II.

Output: 4


Input: Consider Input: Question: A 69-year-old woman consulted for hemoptotic expectoration. In the two previous months she had low-grade fever, asthenia, anorexia and unquantified weight loss. In the cytological analysis of sputum, hemosiderophages were observed and in the chest radiograph bilateral alveolar infiltrates were observed. Analytically it stood out: Hb 8.2gr / dL, PO2: 58mmHg, creatinine: 5mg / dL, urine: proteinuria +++ microhematuria, cylinders, hematics. ANCAp (antibodies against the cytoplasm of perinuclear neutrophils): positive: anti-glomerular basement membrane antibodies: negative. Antinuclear antibodies: negative. The most likely diagnosis would be: 
 Options:  <1> Idiopathic pulmonary hemosiderosis. <2> Goodpasture syndrome. <3> Systemic lupus erythematosus with severe renal involvement. <4> Classical polyarteritis nodosa. <5> Microscopic polyarteritis.

Output: 5


Input: Consider Input: Question: The difference in solute concentration inside and outside the cell gives rise to an osmotic pressure: 
 Options:  <1> Whose measurement allows to determine molar masses of small molecules. <2> Due to the passage of solute through the cell membrane. <3> That corresponds to the pressure that must be applied to interrupt the passage of solvent through the membrane. <4> That causes a difference of chemical potential of the solvent on both sides of the membrane. <5> Whose effect is minimal and complicated to measure.


Output: 3