import java.util.Scanner;
public class justMessinRound {
    public static void main(String args[]) {
        Scanner input = new Scanner(System.in);
        System.out.println("enter your user id");
        String theirUsername = input.next();
        System.out.println("enter your password");
        String theirPassword = input.next();
        String theUsername = "williamlangdoc";
        String thePassoword = "102703";
        if (theirUsername.equals(theUsername) && theirPassword.equals(thePassoword)) {
            System.out.println("Welcome");
        } else {
            if (theirPassword.equals(thePassoword)) {
                System.out.println("incorrect username");
            }
            else
                {
                if (theirUsername.equals(theUsername))
                {
                    System.out.println("incorrect password");
                }
                else
                    {
                    System.out.println("error");
                }
            }
        }
    }
}