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

Ex Input:
Problem: 1,000 ^ 2 + 1,001 ^ 2 + 1,002 ^ 2 + 1,003 ^ 2 + 1,004 ^ 2 =

Ex Output:
6


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: to fill a tank , 25 buckets of water is required . how many buckets of water will be required to fill the same tank if the capacity of the bucket is reduced to 3 / 10 of its present ?

Ex Output:

83.333