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:
Women are ____ times more likely to have bone thinning than men.

Ex Output:
four


Ex Input:
Sponges are subdivided into ____ classes.

Ex Output:
three


Ex Input:
Cyclic neutropenia tends to occur every three weeks and last three to ____ days at a time.

Ex Output:

six