Function DisplayMail

C#/Methods/Program.cs:27–33

(string firstName, string lastName, string domain = "contoso.com")

}

void DisplayMail(string firstName, string lastName, string domain = "contoso.com")
{
    string mail = firstName.Substring(0, 2) + lastName;

    mail = mail.ToLower();
    Console.WriteLine($"{mail}@{domain}");
}