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

Input: Consider Input: Problem: in a kilometer race , a beats b by 48 meters or 12 seconds . what time does a take to complete the race ?

Output: 238 sec


Input: Consider Input: Problem: how many numbers between 200 and 600 are divisible by 4 , 5 and 6 ?

Output: 6


Input: Consider Input: Problem: solve the equation 2 – x = 2 b – 2 ax , where a and b are real parameters . find for which values of a the equation has for solution a natural number , if b = 7


Output: 1