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:
Gloves have ____ ridges or crevices in which the bacteria can hide.

Ex Output:
no


Ex Input:
Most programmable circuits have at least ____ channels.

Ex Output:
two


Ex Input:
Cortisone drops only every hours ____ instead of one.

Ex Output:

two