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:
Seraphs have ____ wings, and their voices can shake doorposts and thresholds.

Ex Output:
six


Ex Input:
Tin exists in ____ allotropic forms.

Ex Output:
three


Ex Input:
Cattle are the second most important commodity in nine states and third in ____ states.

Ex Output:

six