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:
Many biologists believe the sandhill has been virtually unchanged for ____ million years.

Ex Output:
nine


Ex Input:
Many diseases require the tick to be attached for ____ or more hours to transmit disease.

Ex Output:
six


Ex Input:
Egyptian culture boasts ____ millennia of recorded history.

Ex Output:

five