#include "stdafx.h"
#include <iostream>
#include <string>
#include <map>

using namespace std;

int main()
{
	string Fname, Lname;
	double mark, mark1, mark2, min=5, min1=5, min2=5, N;
	map<string, double> base;
	cin >> N;
	for (int i = 0; i != N; ++i)
	{
		cin >> Fname >> Lname >> mark >> mark1 >> mark2;
		base[Fname + ' ' + Lname] = (mark + mark1 + mark2) / 3;
	}
	for (auto it = base.begin(); it != base.end(); ++it)
	{
		if (it->second < min)
		{
			min = min1;
			min1 = min2;
			min2 = it->second;
		}
	}
	for (auto it = base.begin(); it != base.end(); ++it)
	{
		if (it->second == min || it->second == min1 || it->second == min2)
		{
			cout << it->first << " : " << it->second << endl;
		}
	}
	system("pause>void");
	return 0;
}