private static void Main(string[] args)
{
IExpenseHandler rajiv = new ExpenseHandler(new Employee("Rajiv", Decimal.Zero));
IExpenseHandler arunChaudhary = new ExpenseHandler(new Employee("Arun", new Decimal(1000)));
IExpenseHandler sanjeevDhawan = new ExpenseHandler(new Employee("Sanjeev", new Decimal(5000)));
IExpenseHandler aviragJain = new ExpenseHandler(new Employee("Avirag", new Decimal(20000)));
rajiv.Next(arunChaudhary);
arunChaudhary.Next(sanjeevDhawan);
sanjeevDhawan.Next(aviragJain);
Decimal expenseReportAmount = 5845000;
ApprovalResponse response = rajiv.Approve(expenseReportAmount);
Console.WriteLine("The request was {0}", response);
Console.Read();
}