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: Biennials require portions of ____ growing seasons to reproduce.

Output: two


Input: Consider Input: Some species have more than ____ pairs of walking legs.

Output: four


Input: Consider Input: Heart attacks cause some tissue death within ____ minutes and brain death within eight minutes.


Output: four