05.Login

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        String user = scanner.nextLine();

        String password = "";
        for (int i = user.length() - 1; i >= 0; i--) {
            password += user.charAt(i);
        }

        int tryout = 0;

        while (true) {

            String input = scanner.nextLine();

            if (input.equals(password)) {
                System.out.printf("User %s logged in.", user);
                break;
            } else {
                System.out.println("Incorrect password. Try again.");
            }
            tryout++;

            if (tryout > 4) {
                System.out.printf("User %s blocked!", user);
            }
        }

    }
}

//5.	Login
//You will be given a string representing a username. The password will be that username reversed. Until you receive the correct
// password print on the console "Incorrect password. Try again.". When you receive the correct password print "User {username} logged
// in." However on the fourth try if the password is still not correct print "User {username} blocked!" and end the program.