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:
Carbon is able to bond with up to ____ other elements.

Ex Output:
four


Ex Input:
Deer show ____ symptoms of the disease.

Ex Output:
no


Ex Input:
Elephants have ____ toes on the fore feet and four on the hind feet.

Ex Output:

five