using System;

using System.IO;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public class DecoderService

    {

        public Dictionary<int, string> ConvertFileToDictionary(Stream f)

        {

            var data = new Dictionary<int, string>();

            if (f == null) return data;

            using (var streamReader = new StreamReader(f)) {

                String line;

                while ((line = streamReader.ReadLine()) != null)

                {

                    var rec = line.Split(' ');

                    data.Add(Int32.Parse(rec[0]), rec[1]);

                }

            }

            return data;

        }

    }

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

}