#include <iostream>
using namespace std;

class Circle
{
    float r;
public:
    Circle()
    {
        r = 1;
    }
    Circle(float x)
    {
        r = x;
    }
    void area()
    {
        cout << "Area: " << 3.14 * r * r << endl;
    }
    ~Circle()
    {
        cout << "Circle destroyed" << endl;
    }
};

int main()
{
    Circle c1;
    Circle c2(3);
    c1.area();
    c2.area();
    return 0;
}