#include<iostream>
#include<cmath>
using namespace std;
struct Student {
	string name;
	int a, b, c;
}student[1000];
bool is(int x,int y) {
	if (abs(x - y) <= 5)  return 1;
	return 0;
}
int main() {
	int n, b[1000];
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> student[i].name >> student[i].a >> student[i].b >> student[i].c;
		b[i] = student[i].a + student[i].b + student[i].c;
	}
	for (int i = 0; i < n - 1; i++) {
		for (int j = i + 1; j < n; j++) {
			if (is(student[i].a, student[j].a) && is(student[i].b, student[j].b) && is(student[i].c, student[j].c) && abs(b[i] - b[j] <= 10)) {
				cout << student[i].name << " " << student[j].name << endl;
			}
		}
	}
	return 0;
}