import java.util.*;
/**
 * Created by iyasuwatts on 10/17/17.
 */
public class Main {

    public static void main(String[] args ){

        boolean fl = false;

        Scanner in = new Scanner(System.in);
        System.out.println("What is your name?");

        while (fl = false) {

            String name = in.nextLine();

            if (name.equals("alice") || name.equals("Alice")) {
                System.out.println("Hello, Alice");
                fl = true;
            }
            else if (name.equals("bob") || name.equals("Bob")) {
                System.out.println("Hello, Bob");
                fl = true;

            }
        }
    }

}