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

Ex Input:
Problem: one half of a two digit number exceeds its one third by 7 . what is the sum of the digits of the number ?

Ex Output:
e ) 1


Ex Input:
Problem: during a car trip , maria stopped to rest after she traveled 1 / 2 of the total distance to her destination . she stopped again after she traveled 1 / 4 of the distance remaining between her first stop and her destination , and then she drove the remaining 105 miles to her detination . what was the total distance , in miles from maria ' s starting point to her destination ?

Ex Output:
280


Ex Input:
Problem: 3 candidates in an election and received 1136 , 7636 and 11628 votes respectively . what % of the total votes did the winning candidate gotin that election ?

Ex Output:

57 %