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: Knee arthroscopy is used basically in ____ ways.

Output: three


Input: Consider Input: Prairie dogs bear four or ____ young per litter.

Output: five


Input: Consider Input: Sexual maturity is around ____ months.


Output: eight