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: Deer mice have four toes on the forefeet and ____ toes on the hind feet.

Output: five


Input: Consider Input: Mollusks have one or ____ hearts.

Output: two


Input: Consider Input: Most countries use just ____ or three languages.


Output: two