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:
Cockroaches have six legs, ____ antennae and some have wings.

Ex Output:
two


Ex Input:
Team handball is played with seven players per side, six court players, and ____ goalkeeper.

Ex Output:
one


Ex Input:
Food usually remains in the stomach for three to ____ hours.

Ex Output:

four