Simple Multi Tasking program in C#

using System;

using System.Collections.Generic;

using System.Linq;

using System.Reflection;

using System.Text;

using System.Threading.Tasks; 

namespace multitasking

{

    class Program

    {

        static void Main(string[] args)

        {

            execute();

            Console.WriteLine("end of the program");

            Console.Read();

        } 

        static async Task execute()

        {

            Program p1 = Activator.CreateInstance(typeof(multitasking.Program)) as Program;

            Task t = p1.run1();

            Task t1 = p1.run2();

            await Task.WhenAll(t, t1);

            Console.WriteLine("end of the program class");

        }

        async Task run1()

        {

            await Task.Run(() =>

             {

                 for (int i = 0; i < 100; i++)

                 {

                     Console.WriteLine("Run 1:" + i);

                     Task.Delay(5000);

                 }

             });

        }

        async Task run2()

        {

            await Task.Run(() =>

             {

                 for (int i = 0; i < 100; i++)

                 {

                     Console.WriteLine("Run 2:" + i);

                     Task.Delay(1000);

                 }

             });
        }
    }
}