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:
Penguins have ____ seasons in their year, as follows.

Ex Output:
four


Ex Input:
Moths are most active during the first three to ____ hours of darkness.

Ex Output:
five


Ex Input:
Bacteria vary widely in size and shape , but in general are at least ____ times larger than viruses .

Ex Output:

ten