#include "shapes.h"
class circle:public shapes{
private:
	int x, y, r;
public:
	circle():shapes(),x(-1),y(-1),r(-1){}
	circle(int a, int b, int radius):x(a), y(b), r(radius){
		area = 3*r*r;
	}
	void print(){
		cout << "circle area = " << area << endl;
		cout << "circle r = " << r << endl;
		cout << "circle x = " << x << endl;
		cout << "circle y = " << y << endl;
	}
};