#include <iostream>
using namespace std;

class Circle{

    int x;
    int y;

  private:
    int radius;
    Circle c;
    double const pi = 3.14;

  void Set_radius(int new_r){ radius = new_r; }
  void Set_Center(int x, int y){ c.x = x; c.y = y; }

  public:
Circle(){ radius = 0; c.x = 0; c.y = 0; }
Circle(int r, int x, int y){ radius = r; c.x = x; c.y = y;

  int Get_radius(){ return radius; }
  Circle Get_center(){ return c; }

  double Area(){ return radius * radius * pi; }
  double Surface(){ return 2 * radius * pi; }

};

int main()
{

}