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: Most people stay three or four years, sometimes five or ____ years.

Output: six


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

Output: two


Input: Consider Input: Blood contains ____ types of cells - red and white.


Output: two