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:
Deer mice have four toes on the forefeet and ____ toes on the hind feet.

Ex Output:
five


Ex Input:
Primates have ____ digits on their forelimbs.

Ex Output:
five


Ex Input:
Calves are weaned when they are about ____ to eight months old.

Ex Output:

seven