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:
Mosquitoes live ____ to eight weeks.

Ex Output:
four


Ex Input:
Dicots are plants that have ____ cotyledons.

Ex Output:
two


Ex Input:
Most Placentals possess ____ orbital glands.

Ex Output:

two