#include <iostream>

u_int getArea(u_int d){
  u_int area = 0;
  for(u_int i = d; i <= 600 - d; i += d)
    area += i * i * d;
  return area;
}


int main(){
  u_int d;

  while(std::cin >> d)
    std::cout << getArea(d) << std::endl;

  return 0;
}