static void Main(string[] args)
{
var factory = new AccountFactory();
var citiAccount = factory.GetSavingAccount("Citi-007");
var nationalAccount = factory.GetSavingAccount("National-100");
Console.WriteLine("Account balance for citi bank customer is {0} and for National bank is {1}",
citiAccount.Balance, nationalAccount.Balance);
Console.ReadKey();
}
