#include<iostream>
using std::cout;
using std::cin;

typedef struct
{
	double x, y, z;
	double radius;
} sphere;



double distance(sphere a, sphere b)
{
	double dist;

	dist = (a.x - b.x)*(a.x - b.x) + (a.y - b.y)*(a.y - b.y) + (a.z - b.z)*(a.z - b.z);

	return(dist);
}

main()
{
	sphere bubbles[25];
	int i = -1, j, nob = 0;

	cout << "Enter the radius, x value, y value, and z value of your circles; x, y, and z define the center.  When you have entered all of your circles, make the radius and centers 0.\n";

	while(bubbles[i].radius != 0)
	{
		i++;
		cin >> bubbles[i].radius >> bubbles[i].x >> bubbles[i].y >> bubbles[i].z;
		nob++;
	}

	cout << "  ";

	for(i = 0; i < nob-1; i++)
	{
		cout << i+1 << " ";
	}
	cout << "\n";

	for(i = 0; i < 	nob-1; i++)
	{
		cout << i+1 << " ";

		for(j = 0; j < nob-1; j++)
		{
			if(i == j)
			{
				cout << "- ";
				continue;
			}
			if(distance(bubbles[i], bubbles[j]) < ((bubbles[i].radius)*(bubbles[i].radius) + (bubbles[j].radius)*(bubbles[j].radius)))
			{
				cout << "y ";
				continue;
			}
			else if(distance(bubbles[i], bubbles[j]) >= ((bubbles[i].radius)*(bubbles[i].radius) + (bubbles[j].radius)*(bubbles[j].radius)))
			{
				cout << "n ";
				continue;
			}
		}
		cout << "\n";
	}
	cout << "\n";
}