In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Ex Input:
Most people go back to work within _ to three months after having a heart attack.

Ex Output:
one


Ex Input:
Gestation is _ to nine months long, after which a single calf is born.

Ex Output:
eight


Ex Input:
Okra pods are ready for harvest four to _ days after the flower opens.

Ex Output:

seven