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

Input: Consider Input: Problem: ( 935421 x 625 ) = ?

Output: 584638125


Input: Consider Input: Problem: when the price of a product was decreased by 20 % , the number sold increased by 60 % . what was the effect on the total revenue ?

Output: 28 %


Input: Consider Input: Problem: the two lines y = x and x = - 4 intersect on the coordinate plane . if z represents the area of the figure formed by the intersecting lines and the x - axis , what is the side length e of a cube whose surface area is equal to 6 z ?


Output: e = 2 √ 2