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:
Water emits oscillations that are measurable from ____ through Megahertz.

Ex Output:
zero


Ex Input:
Crustaceans have ____ pairs of antennae.

Ex Output:
two


Ex Input:
Accidents happen when impatient motorists try passing ____ and five vehicles at a time.

Ex Output:

four