using System;

public class Program

{

    public static void Main()

    {

        string strItemCode = "sony-dvd-062019";

        string[] parts = strItemCode.Split('-');

        string manufacturerCode = parts[0];

        string productCode = parts[1];

        string month = parts[2].Substring(0, 2);

        string year = parts[2].Substring(2);

​

        Console.WriteLine("Manufacturer: {0}, Product: {1}, Month: {2}, Year: {3}", 

             manufacturerCode, productCode, month, year);

        //q2

        Console.Write("Enter an email address: ");

        string email = Console.ReadLine();

​

        int atIndex = email.IndexOf('@');

        if (atIndex == -1)

        {

            Console.WriteLine("Invalid email address.");

            return;

        }

​

        string userName = email.Substring(0, atIndex);

        string domain = email.Substring(atIndex + 1);

​

        Console.WriteLine("User Name: {0}, Domain: {1}", userName, domain);

    }

}