The task is to generate the correct answer for a given math problem.

Input: Consider Input: Problem: what is the prime factors ’ number of 18 ?

Output: 3


Input: Consider Input: Problem: the sum of the even numbers between 1 and n is 89 * 90 , where n is an odd number , then n = ?

Output: 179


Input: Consider Input: Problem: in a school of 650 boys , 44 % of muslims , 28 % hindus , 10 % sikhs and the remaining of other communities . how many belonged to the other communities ?


Output: 11