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

Ex Input:
Problem: a cylindrical can has a radius of 3 centimeters and a height of 24 centimeters . what is the area , in square centimeters , of a rectangular label that completely covers the curved surface of the can without over - lapping ?

Ex Output:
144 pi', 'e ) 576 pi'


Ex Input:
Problem: a rectangular plot measuring 90 metres by 50 metres is to be enclosed by wire fencing . if the poles of the fence are kept 10 metres apart , how many poles will be needed ?

Ex Output:
28


Ex Input:
Problem: if the integer n has exactly 4 positive divisors , including 1 and n , how many positive divisors does n ^ 3 have ?

Ex Output:

16