#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main(void) {
	int i, j, tep, freq, ans, oldi = -256;
	int sugg[4];
	char resp[4];
	int opt[10] = { 0 };


		
	scanf("%d", &freq);

	for (i = 0; i < freq; i++) {
		scanf("%d %d %d %d %s", &sugg[0], &sugg[1], &sugg[2], &sugg[3], &resp);

		if (resp[0] == 'Y') {
			for (j = 0; j < 4; j++) {
				tep = sugg[j];
				opt[tep]++;
			}
		}
		else if (resp[0] == 'N') {
			for (j = 0; j < 4; j++) {
				tep = sugg[j];
				opt[tep]--;
			}
		}
	}



	for (i = 0; i < 10; i++) {
		if (oldi < opt[i]) {
			ans = i;
			oldi = opt[i];
		}
	}

	printf("%d\n", ans);

	return 0;
}