#include <iostream>
#include <string>
#include <map>
using namespace std;
int main()
{
    int n, max;
    char s[100];
    map<string,int> one;
    map<string, int>::iterator itea;
    string str;
    while(cin>>n&&n)
    {
        while(n--)
        {
            cin>>str;
            one[str]++;
        }
        for(max=0,itea=one.begin();itea!=one.end();++itea)
        {
            if(itea->second>max)
                {
                max=itea->second;
                str=itea->first;
                }
        }
        cout<<str<<endl;
        one.clear();
    }
 }