using System;

using System.Collections.Generic;

using System.Threading;

​

public class Program

{

    public class Item

    {

        public string Output {get; set;}

        public int WaitingTime {get; set;}

    }

    public static void Main()

    {

        var m1 = new List<Item>

        {

            new Item { Output = "1. Tradesman Joe", WaitingTime = 5 },

            new Item { Output = "2. Dr Windy Pops", WaitingTime = 2 },

            new Item { Output = "3. Grandpa Bob", WaitingTime = 8 },

        };

        foreach (var item in m1)

        {

            Thread.Sleep(item.WaitingTime * 1000);

            Console.WriteLine(item.Output);

        }

    }

}