#include<stdio.h>
#include<string.h>

int main(void){
  int i, j;
  int N, A, B, C, D;
  char R[8];
  int S[10] = {};

  scanf("%d", &N);
  for(i = 0; i < N; i++){
    scanf("%d %d %d %d %s", &A, &B, &C, &D, R);
    if(!strcmp(R, "NO")){
      S[A] = 1;
      S[B] = 1;
      S[C] = 1;
      S[D] = 1;
    }
    else if(!strcmp(R, "YES")){
      for(j = 0; j < 10; j++){
	if(j != A && j != B && j != C && j != D) S[j] = 1;
      }
    }
  }
  for(j = 0; j < 10; j++){
    if(S[j] == 0) printf("%d\n", j);
  }
  return 0;
}