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

Ex Input:
Terrorism is a problem which has troubled the international community for more than _ decades.

Ex Output:
three


Ex Input:
Raspberries are considered a high-fiber food at over _ grams of dietary fiber per cup.

Ex Output:
eight


Ex Input:
Postal codes are _ characters long and are a mixture of three letters and three numbers.

Ex Output:

six