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.

Input: Consider Input: Many people have ____ symptoms until they suffer chest pains or a heart attack.

Output: no


Input: Consider Input: Most bacteria have one or ____ circular chromosomes.

Output: two


Input: Consider Input: Fingernails have a life span of ____ to six months.


Output: three