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:
Hedgehogs give birth to one to ____ babies which are born with the spines just below the skin.

Ex Output:
seven


Ex Input:
Nitric oxide serves ____ main functions in the body.

Ex Output:
three


Ex Input:
Snow storms occur seven or ____ times a year.

Ex Output:

eight