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

namespace throwaway
{
    class Program
    {
        static void Main(string[] args)
        {
            Test t = new Test();
            Log l = Log.CreateInstance(t);
            l.Write("this is a test");
            Console.ReadLine();
        }
    }

    class Test : ILogable
    {
        public void Write(string text)
        {
            Console.WriteLine(text);
        }
    }
    interface ILogable
    {
        void Write(string text);
    }

    class Log
    {
        private ILogable _form;

        private Log(ILogable form)
        {
            _form = form;
        }

        public static Log CreateInstance(ILogable form)
        {
            return new Log(form);
        }

        public void Write(string text)
        {
            _form.Write(text);
        }
    }
}