using System;

using System.Threading;

using System.Threading.Tasks;

namespace TaskParallel

{

    public class Class1   

    {

        static void test() 

        {

            Task t1 = Task.Factory.StartNew(() => Employee(1, 2000)).ContinueWith((prev) => Employee1(1, 1500)); 

            Task t2 = Task.Factory.StartNew(() => Employee(2, 1000)).ContinueWith((prev) => Employee1(2, 1200));

            Task t3 = Task.Factory.StartNew(() => Employee(3, 1000)).ContinueWith((prev) => Employee1(3, 2000));

        }

        static void Employee(int id, int sleep)

        {

            Console.WriteLine("Employee Task {0} is started..........!", id);

            Thread.Sleep(sleep);

            Console.WriteLine("Employee Task {0} is completed............!", id);

        }

        static void Employee1(int id , int sleep)

        {

            Console.WriteLine("Employee1 Task {0} is started........", id);

            Thread.Sleep(sleep);

            Console.WriteLine("Employee1 Task {0} is completed.......", id);    

        }

        public static void Main(string[] args)

        {

            test();     

        }

    }

}