#include <bits/stdc++.h>
#define REP(i,n) for(int i=0; i<(n); i++)
using namespace std;
struct cww{cww(){ios::sync_with_stdio(false);cin.tie(0);}}star;
int main()
{
    int N;
    cin >> N;
    
    vector<int> res( 10, 1 );
    REP( i, N )
    {
        vector<int> vc(N);
        REP( j, 4 )
        {
            cin >> vc[j];
        }
        
        string R;
        cin >> R;
        
        REP( j, 4 )
        {
            if( R == "YES" )
            {
                res[vc[j]] += 1;
            }
            if( R == "NO" )
            {
                res[vc[j]] = 0;
            }
        }
    }
    cout << distance( res.begin(), max_element( res.begin(), res.end() ) ) << endl;
    return 0;
}