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

Ex Input:
Problem: if the radius of a circle is decreased 60 % , what happens to the area ?

Ex Output:
84 % decrease


Ex Input:
Problem: the number of boxes in a warehouse can be divided evenly into 7 equal shipments by boat or 28 equal shipments by truck . what is the smallest number of boxes that could be in the warehouse ?

Ex Output:
28


Ex Input:
Problem: what is the 10 th digit of ( 5 ! * 4 ! * 4 ! - 5 ! * 4 ! * 3 ! ) / 2880 ?

Ex Output:

1