import java.util.Scanner;

public class Project{

    public static void main(String[] args){
        while(true){
            menu();
        }
    }
    public static void menu(){
        Scanner kb = new Scanner(System.in);


        System.out.println( "Please Enter the Password:");

        String x = kb.nextLine();

        if (x.equals ("lol") ){
            authentication();
        } else if (!x.equals ("lol")){
            failed();
        }

    }
    public static void authentication(){
        Scanner kb = new Scanner(System.in);

        System.out.println("Congratulations! You are now recognized. Please sign in with your username:");

        String UN = kb.nextLine();

        System.out.println("Congratulations " + UN + " you are now logged in!");

        System.out.println("Do you want to continue (yes or no)?");
        String x = kb.nextLine();
        if (x.equals ("yes")){
            welcome();
        } else if (x.equals ("no")){

            System.exit(0);

        }
    }
    public static void failed(){
        Scanner kb = new Scanner(System.in);

        System.out.println("Sorry, you failed to authenticate. Please try again. (This is your last chance)");
        String x = kb.nextLine();
        if (!x.equals ("lol")){
            infiniteloop();
        }
        else if (x.equals ("lol")){
            authentication();
        }

    }


    public static void infiniteloop(){
        for (int i=0;i<=10; i++){
            System.out.println("You have failed to authenticate!");
        }
        System.exit(0);
    }
    public static void welcome(){
        for (int i=0;i<=5000; i++) {
            System.out.println("0101010101010101001010101001010101001010110101010");
            System.out.println("1010101010101010110101010110101010110101001010101");
        }
        System.out.println("Welcome to the Matrix");
        System.exit(0);
    }
}