#include<stdio.h>
#include<stdbool.h>

int main(void)
{

	int turn;
	int a[6], b[6], c[6], d[6];
	char r[6][3];

	bool sel[10] = { true,true,true,true,true,true,true,true,true,true };

	scanf("%d", &turn);

	for (int idx = 0; idx < turn; idx++) {
		scanf("%d %d %d %d %s", &a[idx], &b[idx], &c[idx], &d[idx], r[idx]);
	}

	for (int idx = 0; idx < turn; idx++) {

		if (r[idx][0] == 'Y') {

			for (int isel = 0; isel < 10; isel++) {
				if (isel != a[idx] && isel != b[idx] && isel != c[idx] && isel != d[idx]) {
					sel[isel] = false;
				}
			}

		}
		else {

			for (int isel = 0; isel < 10; isel++) {
				if (isel == a[idx] || isel == b[idx] || isel == c[idx] || isel == d[idx]) {
					sel[isel] = false;
				}
			}
		}
	}

	for (int isel = 0; isel < 10; isel++) {
		if (sel[isel] == true) {

			printf("%d\n", isel);
		}

	}

	return 0;
}