Untitled

#include <string>
#include <iostream>
using namespace std;
int main()
{
	int n;
	string b,bmax;
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		cin >> b;
		if (bmax.length() < b.length())bmax = b;
	}
	cout << bmax;
}