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

Input: Consider Input: Cancer can develop in any of the _ sections of the colon or in the rectum.

Output: four


Input: Consider Input: Diarrhea is an illness that kills _ and one-half million children per year.

Output: three


Input: Consider Input: Doxycycline antibiotics twice a day for _ days is also effective.


Output: five