using System;

public class Program

{

    public class email_validate 

    {

        public void validate_email_acc(string rec_email) 

        {

            string google = "gmail.com";

            string yahoo = "yahoo.com";

            if(rec_email.Contains(google) ||  rec_email.Contains(yahoo) &&  rec_email.Contains("@"))

            {

                Console.WriteLine("Valid Email ID");

            }

            else

            {

                Console.WriteLine("Please Enter valid Email ID");

            }

        }

    }

​

    public class pswd_validate 

    {

        public void validate_pswd_acc(string rec_pswd) 

        {

            string number = "0123456789";

            string special = "!#$%&'*+-/=?^_`{|}~";

            if(rec_pswd.Contains(number) &&  rec_pswd.Contains(special))

            {

                Console.WriteLine("Valid Password");

            }

            else

            {

                Console.WriteLine("Please Enter valid Password");

            }

​

        }

    }

​

    public static void Main()

    {

        string email_val;

        string pwsd_val;

        Console.WriteLine("Enter Email ID: ");

        email_val = Console.ReadLine();

        Console.WriteLine("Enter Password: ");

        pwsd_val = Console.ReadLine();

        pswd_validate p = new pswd_validate();

        p.validate_pswd_acc(pwsd_val);

        email_validate e = new email_validate();

        e.validate_email_acc(email_val);

    }

}