#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>

using namespace std;

int main() {

    int N;
    cin >> N;

    int p[10];
    for (int i = 0; i < 10; ++i) {
        p[i] = 0;
    }

    for (int i = 0; i < N; ++i) {
        int A, B, C, D;
        string R;
        cin >> A >> B >> C >> D >> R;
        if (R == "YES") {
            p[A] += 1;
            p[B] += 1;
            p[C] += 1;
            p[D] += 1;
        } else {
            p[A] -= 1;
            p[B] -= 1;
            p[C] -= 1;
            p[D] -= 1;
        }
    }

    int a = 0;
    for (int i = 1; i < 10; ++i) {
        if (p[a] < p[i]) {
            a = i;
        }
    }

    cout << a << endl;

    return 0;
}