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: People often have to wait between three and ____ years for an organ especially for a liver.

Output: five


Input: Consider Input: Distance Reports the distance between the last ____ picked atoms.

Output: two


Input: Consider Input: Reproductive maturity occurs at seven to ____ years .


Output: ten