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:
Buses are ____ times as fuel efficient as cars.

Ex Output:
five


Ex Input:
Many infected dogs exhibit ____ symptoms until the disease is in an advanced state.

Ex Output:
no


Ex Input:
Most women experience a menstrual period ____ to six weeks after a miscarriage.

Ex Output:

four