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:
Prairie dogs bear four or ____ young per litter.

Ex Output:
five


Ex Input:
White chocolate is a confection of fat and sugar and contains ____ antioxidants at all.

Ex Output:
no


Ex Input:
Color codes are a ____ digit number for either background or text.

Ex Output:

six