#include <iostream>		//cin, cout
#include <vector>		//vector
#include <algorithm>	//sort,min,max,count
#include <string>		//string,getline, to_string
#include <cstdlib>		//abs(int)
#include <utility>		//swap, pair
#include <deque>		//deque
#include <climits>		//INT_MAX
#include <bitset>		//bitset

using namespace std;

int main() {

	int N;
	cin >> N;

	int A, B, C, D;
	string R;

	vector<int> a(10);

	for (int i = 0; i < N; i++) {
		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 ans = distance(a.begin(), max_element(a.begin(), a.end()));
	
	cout << ans << endl;

	return 0;

}