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: Some nurseries only take children aged ____ years and over.

Output: two


Input: Consider Input: Some botanists recognise ____ botanical varieties.

Output: two


Input: Consider Input: Hemorrhages usually resorb and seven to ____ days at sea level without impairment of vision.


Output: ten