#include <bits/stdc++.h>
// #include <boost/multi_array.hpp>
// #include <boost/optional.hpp>
// #include <boost/range/irange.hpp>
// #include <boost/range/algorithm.hpp>
// #include <boost/range/adaptors.hpp>
// #include <atcoder/all>
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using P = pair<int, int>;
using vi = vector<int>;
using vvi = vector<vi>;
#define rep(i, n) for(int i = 0; i < (n); i++)
#define rep2(i, x, n) for(int i = x; i < (n); i++)
#define all(n) begin(n), end(n)
const int INF = 1e9;
const long long llINF = 1LL << 60;

int dy[] = {0, 0, 1, -1};
int dx[] = {1, -1, 0, 0};

void Main() {
    int n;
    cin >> n;
    vector<int> judge(10, 0);
    rep(i, n) {
        int a, b, c, d;
        string s;
        cin >> a >> b >> c >> d >> s;
        if(s == "YES") {
            judge[a]++;
            judge[b]++;
            judge[c]++;
            judge[d]++;
        } else {
            judge[a] -= 100;
            judge[b] -= 100;
            judge[c] -= 100;
            judge[d] -= 100;
        }
    }
    int max = -1;
    int ans;
    rep(i, 10) {
        if(judge[i] > max) {
            max = judge[i];
            ans = i;
        }
    }
    cout << ans << endl;
}

int main() {
    std::cin.tie(nullptr);
    std::ios_base::sync_with_stdio(false);
    std::cout << std::fixed << std::setprecision(15);
    Main();
    return 0;
}