#include <iostream>

int main()
{
  double radius;
  double area;

  // Step 1: Read in radius
  radius = 20;

  // Step 2: Compute area
  area = radius * radius * 3.14159;

  // Step 3: Display the area
  std::cout << "The area is ";
  std::cout << area << std::endl;

  return 0;
}