P06.Supermarket (C# Shell App Paste)

using System;
using System.IO;
using System.Linq;
using System.Collections.Generic;
using System.Threading;

namespace CSharp_Shell
{

    public static class Program
    {
        public static void Main()
        {
            var queue = new Queue<string>();
            while (true)
            {
                var command = Console.ReadLine();
                if (command == "Paid")
                {
                    while (queue.Any())
                    {
                        Console.WriteLine(queue.Dequeue());
                    }
                }
                else if (command == "End")
                {
                    Console.WriteLine($"{queue.Count} people remaining.");
                    return;
                }
                else
                {

                    queue.Enqueue(command);
                }
            }
        }
    }
}