xmu 1326

#include <map>    
#include <vector>    
#include <iostream>    
#include <string>    
using namespace std;    
    
double Randomf(double a, double b)       
{       
    double c;       
    c = (double)(a+(b-a)*1.0*rand()/RAND_MAX);       
    return c;       
}       
int Randomi(int a, int b)       
{       
    int c;       
    c=(int)Randomf((double)a,(double)b);       
    return c;       
}    
int main()    
{    
    int n;    
    scanf("%d",&n);    
    map<string,int> stats;    
    typedef map< string,int >::value_type statsValType;    
    map<string,int>::iterator it,index;    
    
    string s;    
    int max=0;    
    while(n--)    
    {    
        cin>>s;    
        if(Randomi(0,1200)>1)    
            continue;    
        if(stats.count(s))    
             stats[s] += 1;    
        else     
            stats.insert(statsValType(s,1));    
    }    
    scanf("%d",&n);    
    while(cin>>s)    
    {    
        cin>>s;    
        if(stats.count(s))    
             stats[s] += 1;    
    }    
    
    for(it=stats.begin();it!=stats.end();++it)    
    {    
        if(it->second > max)    
        {    
            max = it->second;    
            index = it;    
        }    
    }    
    cout<<index->first<<endl;    
}