#include <stdio.h>


int main(void){
    //nの読み込み
    int n;
    scanf("%d",&n);
    //abcdrの読み込み
    int i;
    struct table{
        int a;
        int b;
        int c;
        int d;
        char r[30];
    }tab[n];
    for(i = 0 ; i < n ; i++){
        scanf("%d %d %d %d %s", &tab[i].a, &tab[i].b, &tab[i].c, &tab[i].d, tab[i].r);
    }
    //次郎君を求める
    int max,x;
    int aaa[10];
    max = 0;
    for(i = 0 ; i < 10 ; i++){
        aaa[i] = 0;
    }
    for(i = 0 ; i < n ; i++){
        if(tab[i].r[0] == 'Y'){
            aaa[tab[i].a]++;
            aaa[tab[i].b]++;
            aaa[tab[i].c]++;
            aaa[tab[i].d]++;
        }
        if(tab[i].r[0] == 'N'){
            aaa[tab[i].a] -= 10;
            aaa[tab[i].b] -= 10;
            aaa[tab[i].c] -= 10;
            aaa[tab[i].d] -= 10;
        }
    }
    //for(i = 0 ; i < 10 ; i++){
    //    printf("aaa[%d] = %d\n", i, aaa[i]);
    //}
    for(i = 0 ; i < 10 ; i++){
        if(aaa[i] > max){
            max = aaa[i];
            x = i;
        }
    }
    //表示
    printf("%d\n", x);

    return 0;
}