#include<iostream>
#include<cmath>
#include<cstring>
using namespace std;
class student
{
public:
	char name[9];
	int chinese, english, math, total;
	void stu(char n[], int c, int e, int m)
	{
		strcpy(name, n);
		chinese = c; english = e; math = m; total = c + e + m;
	}
};

int main()
{
	int n;
	cin >> n;
	student s[1000];
	for (int i = 0; i < n; i++)
	{
		char cc[20];
		int c, e, m;
		cin >> cc >> c >> e >> m;
		s[i].stu(cc, c, e, m);
	}
	for (int i = 0; i < n - 1; i++)
		for (int j = i + 1; j < n; j++)
		{
			if (fabs(s[i].chinese - s[j].chinese) <= 5 && fabs(s[i].english - s[j].english) <= 5 && fabs(s[i].math - s[j].math) <= 5 && fabs(s[i].total - s[j].total) <= 5)
			{
				cout  << s[i].name << " " << s[j].name<<endl;
			}
		}
	return 0;
}