#include <iostream>
#include <string>
#include <vector>


using namespace std;

int main(){
  int n;
  cin >> n;
  if(n < 5){
    cout << "VALUE OF N TOO SMALL" << endl;
  }
  if(n > 10)
    cout << "VALUE OF N TOO LARGE" << endl;
  vector<string> players(n);
  for(int i = 0; i < n; i++)
    cin >> players[i];

  for(int i = 0; i < n; i++)
    for(int j = 0; j < n; j++)
      if(i != j && players[i] == players[j])
	cout << players[i] << " IS LISTED TWICE" << endl;
	
  string games;
  cin >> games;
  if(games.size() > 1000)
    cout << "GAMES STRING TOO LONG" << endl;

  for(int i = 0; i < games.size(); i++){
    if(games[i] != 'B' && games[i] != 'W')
      cout << games[i] << " IS AN ILLEGAL GAME RESULT!" << endl;
  }
  return 42;
}