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: Raindrops produce ____ types of sound underwater.

Output: two


Input: Consider Input: Edges Usually refers to the ____ outside edges of the pages of a book.

Output: three


Input: Consider Input: Airplanes still fly four to ____ times faster than zeppelins.


Output: five