// Properties of spheres of radii 1, 3, and 7
// using function argument
#include <iostream>
#include <math.h>
using namespace std;
const double pi = 3.1416;

void Sphere(double r) // r is an argument
{
  double area, volume;
  area = 4. * pi * r * r; 
  volume = 4./3. * pi * r * r * r;
  cout << r << ' ' << area << ' ' << volume << endl;
}

int main()  
{
  Sphere(1.);
  Sphere(3.);
  Sphere(7.);
}