using System;

using Microsoft.AspNetCore.DataProtection;

using Microsoft.Extensions.DependencyInjection;

public class Program

{

    public static void Main()

    {

        var serviceCollection = new ServiceCollection();

        serviceCollection.AddDataProtection();

        var services = serviceCollection.BuildServiceProvider();

        var instance = ActivatorUtilities.CreateInstance<Initializer>(services);

        instance.RunProgram();

    }

    public class Initializer

    {

        private readonly IDataProtector _protector;

        public void RunProgram()

        {

            Console.WriteLine("Hello, world!");

        }

    }

}