#include <iostream>
using namespace std ;

struct Circle
{
	double radius;
	double diameter;
	double area;
};

int main()
{
	Circle object1 ;
	object1.radius = 2.4 ;
	object1.diameter = 2 * object1.radius  ;
	cout <<  "object1.radius: " << object1.radius <<
	" object1.diameter: " << object1.diameter << endl ;

	return(0) ;
}