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

Input: Consider Input: Problem: the population of a city is 415600 . it increased by 25 % in the first year and decreased by 30 % in the second year . what is the population of the city at the end of second year ?

Output: 363650


Input: Consider Input: Problem: the dimensions of a room are 25 feet * 15 feet * 12 feet . what is the cost of white washing the four walls of the room at rs . 7 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each ?

Output: s . 6342


Input: Consider Input: Problem: solve the quickfire maths brain teaser â ˆ š 16 % = ?


Output: 40 %