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:
Lions stand ____ feet tall at the shoulders.

Ex Output:
three


Ex Input:
Alligator gars have ____ rows of teeth.

Ex Output:
two


Ex Input:
Flexible shapes are also shapes which have ____ obvious way of being attacked.

Ex Output:

no