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:
Ground squirrels have a single litter a year that averages from ____ to nine young.

Ex Output:
four


Ex Input:
Many addicts use opium because they have ____ access to public health care facilities.

Ex Output:
no


Ex Input:
Cassowaries are capable of breeding when they are ____ years old.

Ex Output:

three