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

Ex Input:
Problem: last year elaine spent 20 % of her annual earnings on rent . this year she earned 35 % more than last year and she spent 30 % of her annual earnings on rent . the amount she spent on rent this year is what percent of the amount spent on rent last year ?

Ex Output:
202.5


Ex Input:
Problem: 90 % of the population of a village is 36000 . the total population of the village is ?

Ex Output:
4000


Ex Input:
Problem: find the least number must be subtracted from 62575 so that remaining number is divisible by 99 .

Ex Output:

7