In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Most people tan two to _ times a week.

Output: three


Input: Consider Input: Cigarette smokers have up to a _ times higher incidence of bladder cancer than non-smokers.

Output: four


Input: Consider Input: Disaccharides are _ monosaccharides linked together.


Output: two