#include <iostream>
#include <cstdlib>

using namespace std;

struct Data
{
	int a;
	int b;
	int c;
	int d;
	string r;
};

int main()
{
	int N; cin >> N;
	Data tmp;
	int dp[] = {0,0,0,0,0,0,0,0,0,0};
	
	for (int i = 0; i < N; i++)
	{
		cin >> tmp.a >> tmp.b >> tmp.c >> tmp.d >> tmp.r; 
		
		if (tmp.r == "YES")
		{
			dp[tmp.a]++;
			dp[tmp.b]++;
			dp[tmp.c]++;
			dp[tmp.d]++;
		}
		else
		{
			dp[tmp.a]--;
			dp[tmp.b]--;
			dp[tmp.c]--;
			dp[tmp.d]--;
		}
	}
	
	int ret = 0;
	for (int i = 0; i < 10; i++)
	{
		if (dp[i] > dp[ret]) ret = i;;
	}
	
	cout << ret << endl;
	
	return 0;
}