#include <iostream>
#include <cmath>
#include <vector>

struct Circle {
  double x,y,r;
};

Circle read_circle(double x, double y, double r) {
  return Circle{x,y,r};
}

bool overlapped(Circle C1, Circle C2) {
  double dist = sqrt(pow(C1.x - C2.x, 2) + pow(C1.y - C2.y, 2));
  return (dist < (C1.r + C2.r));
}

int main() {
	int x,y,r,itr;
	std::cout << "Input the x-coordinate of circle 1" << std::endl << "x= ";
	std::cin >> x;
	std::cout << "Input the y-coordinate of circle 1" << std::endl << "y= ";
	std::cin >> y;
	std::cout << "Input the radius of circle 1" << std::endl << "r= ";
	std::cin >> r;

	Circle circle1 = read_circle(x,y,r);

	itr = 2;

	std::vector<Circle> circle_list;

	while(1)
	{
	std::cout << "Input the x-coordinate of circle " << itr << std::endl << "x= ";
	std::cin >> x;
	std::cout << "Input the y-coordinate of circle " << itr << std::endl << "y= ";
	std::cin >> y;
	std::cout << "Input the radius of circle " << itr << std::endl << "r= ";
	std::cin >> r;

	if (r < 0)
		break;

	circle_list.push_back(read_circle(x,y,r));

	//	std::cout << "overlapped" << std::endl << std::endl;

	if (overlapped(circle1,circle_list[itr - 2]))
	  std::cout << "overlapped" << std::endl << std::endl;
	else
		std::cout << "not overlapped" << std::endl << std::endl;

	itr++;
	}

	return 0;
}