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:
Irrigated land is almost ____ times as productive as rainfed cropland.

Ex Output:
three


Ex Input:
Climbers are the most frequent cause of injury for children ____ and older.

Ex Output:
six


Ex Input:
Loggers generally work in crews of ____ to eight workers.

Ex Output:

four