// largestString.cpp : Defines the entry point for the console application.
//

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


using namespace std;
using Iterator = std::string::iterator;

bool lexicographic_compare(Iterator first1, Iterator last1,
	Iterator first2, Iterator last2);

string getString(vector<string> pile);

int main() {
	// string input
	int N = 0;
	cin >> N;

	if (N <= 0)
		return 0;

	vector<string> pile (N);

	for (int i = 0; i < N; ++i)
	{
		string input;
		//getline(cin, input);
		cin >> input;
		pile.at(i) = input;
	}

	string large = getString(pile);

	cout << large << "\n";

	return 0;
}

bool lexicographic_compare(Iterator first1, Iterator last1,
	Iterator first2, Iterator last2)
{

	Iterator j = first2;

	for (Iterator i = first1; i != last1; ++i)
	{
		if (j == last2)
			return false;

		if (*i < *j)
			return true;

		if (*i == *j)
		{
			++j;
			continue;
		}

		else
		return false;

		++j;
	}

	Iterator k = first1;

	for (Iterator i = first2; i != last2; ++i)
	{
		if (j == last1)
			return true;

		if (*i < *j)
			return false;

		if (*i == *j)
		{
			++k;
			continue;
		}

		else
		return false;

		++k;
	}
	return false;
}

string getString(vector<string> pile)
{
	string large = pile.at(0);

	for (unsigned int i = 0; i < pile.size() - 1; ++i)
	{

		string name2 = pile.at(i + 1);

		if (lexicographic_compare(large.begin(), large.end(), name2.begin(), name2.end()))
		{
			large = pile.at(i + 1);
		}

	}
	return large;
}