#include <iostream>
#include <algorithm>
#include <cstring>
#include <string>
#define setBit(x,b) ((x)|(1<<(b)))
#define getBit(x,b) ((x)&(1<<(b)))
#define delBit(x,b) ((x)&~(1<<(b)))
#include <climits>
using namespace std;

int main()
{
	int N, A, B, C, D, NG = 0;
	string R;
	cin >> N;
	for (int i = 0; i < N; ++i)
	{
		cin >> A >> B >> C >> D >> R;
		if (!R.compare("YES"))
		{
			int temp = INT_MAX;
			temp = delBit(temp, A);
			temp = delBit(temp, B);
			temp = delBit(temp, C);
			temp = delBit(temp, D);
			NG |= temp;
		}
		else
		{
			int temp = 0;
			temp = setBit(temp, A);
			temp = setBit(temp, B);
			temp = setBit(temp, C);
			temp = setBit(temp, D);
			NG |= temp;
		}
	}

	for (int i = 0; i <= 9; ++i)
		if (!getBit(NG, i))
			cout << i << endl;

	return 0;
}