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:
Atoms are extremely small, on the order of a few ____ billionths of a meter.

Ex Output:
ten


Ex Input:
Sexual maturity is between ____ and six years of age.

Ex Output:
three


Ex Input:
Risk factors can affect patients in ____ ways.

Ex Output:

two