#include <iostream>
#include <string>
#include <algorithm>
#include <limits.h>
using namespace std;

int main()
{
    const int m = 10;
    int nums[m];
    for (int i = 0; i < m; i++)
        nums[i] = 0;

    int n;
    cin >> n;
    for (int i = 0; i < n; i++)
    {
        int a, b, c, d;
        string r;
        cin >> a >> b >> c >> d >> r;
        int x = 1;
        if (r == "NO")
            x = -1;
        nums[a] += x;
        nums[b] += x;
        nums[c] += x;
        nums[d] += x;
    }
    int maxNum = INT_MIN;

    for (int i = 0; i < m; i++)
        maxNum = max(maxNum, nums[i]);

    for (int i = 0; i < m; i++)
        if (nums[i] == maxNum)
            cout << i << "\n";
}