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:
Human feet bear average ____ to six hundreds tons of weight everyday.

Ex Output:
five


Ex Input:
Males mature sexually as soon as ____ years of age.

Ex Output:
two


Ex Input:
Scientists believe that giant squids live for less than ____ years.

Ex Output:

five