using System;

public class Program

{

    public static void Main(string[] args)

    {

        int amount=2000,deposite,withdrawal;

        int choice,pin=0,x=0;

        Console.WriteLine("ENTER YOUR PIN NUMBER");

        pin=int.parse(Console.ReadLine());

        while(true)

        {

            Console.WriteLine("**Welcome to ATM service**\n");

            Console.WriteLine("1.Check Balance\n");

            Console.WriteLine("2.Withdraw Cash\n");

            Console.WriteLine("3.Deposite Cash\n");

            Console.WriteLine("4.Quit\n");

            Console.WriteLine("**__________\n\n");

            Console.WriteLine("Enter your choice:");

            choice=int.parse(Console.ReadLine());

            switch(choice)

            {

                case 1: Console.WriteLine("\n YOUR BALANCE IN RS:{0}",bal(amount));

                    break;