1004 ( Let the Balloon Rise )

#include <iostream>
#include <map>
#include <String>

using namespace std;

int main()
{
    int N;
    while((cin>>N),N){
        map<string, int> balloon;
        string color;    
        for(int i=0; i<N; i++){
            cin>>color;
            balloon[color]++;
        }
        
        int maxcount=0;
        for(map <string, int>::iterator  it=balloon.begin();it!= balloon.end( ); it++){
            if(maxcount<it->second){
                color=it->first;
                maxcount=it->second;
            }
        }
        cout<<color<<endl;
    }
    return 0;
}