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

Ex Input:
Problem: a person was asked to subtract 25 % of a number from the original but he subtracted 25 from the number . his answer was 25 more than correct one . what was the original number ?

Ex Output:
200


Ex Input:
Problem: of the 130 employees at company x , 80 are full - time , and 100 have worked at company x for at least a year . there are 20 employees at company x who aren ’ t full - time and haven ’ t worked at company x for at least a year . how many full - time employees of company x have worked at the company for at least a year ?

Ex Output:
30


Ex Input:
Problem: what is the remainder when 1041 * 1047 * 1050 * 1053 is divided by 33 ?

Ex Output:

21