#include <iostream>

 #include <cstdio>

 #include <cstdlib>

 #include <cstring>

 #include <string>

 #include <map>

 using namespace std;

 map<string, int> ballon;

 string tmp;

 int main()

 {

     int i, j, n;

     while (cin >> n && n)

     {

         ballon.clear();

         for (i = ; i < n; i++)

         {

             cin >> tmp;

             ballon[tmp]++;

         }

         map<string, int>::iterator iter, poi;

         int maxp = ;

         for (iter = ballon.begin(); iter != ballon.end(); iter++)

         {

             if (maxp < iter->second)

             {

                 maxp = iter->second;

                 poi = iter;

             }

         //    cout << iter->first << "  " << iter->second << endl;

         }

         cout << poi->first << endl;

     }

     return ;

 }