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.

Ex Input:
Taiwanese law permits a jail term of up to ____ years for spreading computer viruses.

Ex Output:
three


Ex Input:
Elephants give birth to ____ calf every four to nine years on average.

Ex Output:
one


Ex Input:
Lions reach full maturity at around ____ years of age.

Ex Output:

six