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:
Some women experience a labor of three to ____ days.

Ex Output:
five


Ex Input:
Wood consists of ____ distinct fuels.

Ex Output:
two


Ex Input:
Formulary drugs can be of ____ types.

Ex Output:

three