using System;

public class Program

{

    public static void Main()

    {

        string UserName= "Yash";

        string UserPassword="123YS";

        Console.WriteLine("Enter User Name");

        string User =Console.ReadLine() ;

        Console. WriteLine("Enter Password") ;

        string Password =Console. ReadLine() ;

        if(UserName==User) 

        { if (UserPassword==Password) 

            Console. WriteLine("Welcome ") ;

            Console. WriteLine("Successsfull your login") ;

             }

           else{

            Console. WriteLine("Wrong Password ") ;

             Console. WriteLine("Wrong User Name") ;

        }

    }

    }

​