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: Heart attacks occur most often around ____ in the morning.

Output: five


Input: Consider Input: Power is derived from ____ sources, money and people.

Output: two


Input: Consider Input: Stabilizers are also critical to operation of ____ point guidance systems.


Output: three