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:
Lung disease is America's number ____ killer, responsible for one in seven deaths.

Ex Output:
three


Ex Input:
Some programming languages have ____ or more standards .

Ex Output:
two


Ex Input:
Some people think that reduced-fat means ____ calories or reduced calories.

Ex Output:

no