static void Main(string[] args)
 {
     Manager managerA = new Manager(30000);
     Manager managerW = new Manager(500,52);
     Console.WriteLine("Annual Salary : {0} \nWeekly Salary : {1}", managerA.salary,managerW.salary);
     Console.Write("\n\n");
     Console.WriteLine("Press any key to exit.");
     Console.ReadKey();
 }