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

Ex Input:
Problem: the sum of ages of 5 children born 1 years different each is 30 years . what is the age of the elder child ?

Ex Output:
8


Ex Input:
Problem: the product of two successive numbers is 4160 . which is the smaller of the two numbers ?

Ex Output:
64


Ex Input:
Problem: the average of 11 numbers is 500 . out of 11 numbers the average of first 6 no . is 50 , and last 6 numbers is 60 then find 6 th number ?

Ex Output:

110