#include <iostream>
using namespace std ;

/*Nested Structure*/
struct Circle
{
	double radius;
	double diameter;
	double area;
};

struct Shape
{
	Circle circleObject ;
	int x1 ;
};

int main()
{
	Shape  shape1 ;
	shape1.circleObject.radius = 1 ;
	shape1.circleObject.diameter = 2 ;
	shape1.circleObject.area = 3.14 ;
	return(0) ;
}