Практика по делегатам

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Delegates
{
    public delegate void SayHello(string name);

    public static class RussianGreeting
    {
        public static void SayHello(string name)
        {
            Console.WriteLine($"Здравствуйте, {name}");
        }
    }

    public static class EnglishGreeting
    {
        public static void SayHello(string name)
        {
            Console.WriteLine($"Hello, {name}");
        }
    }

    public static class GermanGreeting
    {
        public static void SayHello(string name)
        {
            Console.WriteLine($"Hallo, {name}");
        }
    }

    class Program
    {

        static void Main(string[] args)
        {
            Console.WriteLine("Введите имя, с которым надо поздороваться");
            string name = Console.ReadLine();

            SayHello russian = RussianGreeting.SayHello;
            SayHello german = GermanGreeting.SayHello;
            SayHello english = EnglishGreeting.SayHello;
            SayHello combinedDelegate = russian + german + english;

            combinedDelegate(name);
            Console.ReadKey();
        }
    }
}