Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Input: Consider Input: Western medicine uses ____ approaches, drugs or surgery.

Output: two


Input: Consider Input: Birds have ____ basic types of feathers.

Output: three


Input: Consider Input: Smokers are ____ times more likely to have gum disease than nonsmokers are.


Output: four