#include <iostream>
#include <math.h>
#include <algorithm>
#include <functional>
#include <vector>
#include <typeinfo>
#include <climits>
#include <ctype.h>
#include <string>
using namespace std;
#define INIT cin.tie(0); ios::sync_with_stdio(false);
#define FOR(i, a, n) for (int i = a; i < n; i++)
#define REP(i, n) for(int i = 0; i < n; i++)

int main()
{
    INIT;
    
    int n;
    cin >> n;

    int A[10] = {};
    REP(i, n){
        int a, b, c, d;
        string r;
        cin >> a >> b >> c >> d >> r;
        if(r == "YES"){
            A[a]++;
            A[b]++;
            A[c]++;
            A[d]++;
        }else{
            A[a]--;
            A[b]--;
            A[c]--;
            A[d]--;
        }
    }

    int max = INT_MIN;
    int idx = 0;
    REP(i, 10){
        if(A[i] > max){
            max = A[i];
            idx = i;
        }
    }
    cout << idx << endl;

    return 0;
}