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:
Some alternative antibiotics require ____ doses per day for ten days.

Ex Output:
three


Ex Input:
Most babies double their birthweight by ____ to five months.

Ex Output:
four


Ex Input:
Some vertebrates can survive freezing, but ____ vertebrates can survive grinding.

Ex Output:

no