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 pandas move on all ____ legs.

Ex Output:
four


Ex Input:
Knee arthroscopy is used basically in ____ ways.

Ex Output:
three


Ex Input:
Some people say that ____ dose of poison can kill ten full grown men.

Ex Output:

one