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: Most orthoptists work ____ hours a day, four or five days a week.

Output: eight


Input: Consider Input: Mosquitoes can develop in any stagnant water that lasts more than ____ days.

Output: four


Input: Consider Input: Insect eyes come in ____ types, simple and compound .


Output: two