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

Ex Input:
Problem: you enter a weight loss challenge game and manage to lose 12 % of your body weight . for the final weigh in you are forced to wear clothes that add 2 % to your weight . what percentage of weight loss is measured at the final weigh in ?

Ex Output:
10.24 %


Ex Input:
Problem: how many zeroes are there at the end of the number n , if n = 100 ! + 200 ! ?

Ex Output:
2


Ex Input:
Problem: carl can wash all the windows of his house in 6 hours . his wife maggie can wash all the windows in 6 hours . how many hours will it take for both of them working together to wash all the windows ?

Ex Output:

3