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:
Giant squid have ____ gas spaces in their bodies.

Ex Output:
no


Ex Input:
Most organ systems are operational in the fetus by ____ to six months.

Ex Output:
four


Ex Input:
Infants grow to ____ times their birth weight by their first birthday.

Ex Output:

three