import java.util.*;
import static java.lang.Math.*;

public class Problem{
    ArrayList<String> names;
    void solve(Scanner in)
    {
        int n = in.nextInt();
        names = new ArrayList<>();
        String currentName = null;
        for(int i = 0; i < n; i++) {
            currentName = in.next();
            System.out.println(answer(currentName));
            names.add(currentName);
        }
    }
    String answer(String currentName){
        for(int j = 0; j < names.size(); j++)
            if(currentName.equals(names.get(j)))
                return "YES";
        return "NO";
    }
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        new Problem().solve(in);
    }
}