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

Example Input: Problem: 2,7 , 17,3 , 11,19 , 5,13 , __
Example Output: 23

Example Input: Problem: of the diplomats who attended a summit conference : 20 spoke japanese , 32 did not speak russian and 20 % of the diplomats spoke neither japanese nor russian . if 10 % of the diplomats spoke both japanese and russian , then how many diplomats attended the conference ?
Example Output: 120

Example Input: Problem: increasing the original price of a certain item by 25 percent and then increasing the new price by 30 percent is equivalent to increasing the original price by what percent ?
Example Output:
62.