using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        string input = "Hello World";       

        process(input);

    }

    public static void process(string input)

    {

            Dictionary<char,int> characters = new Dictionary<char,int>();

        foreach(var c in input)

        {

            if(c != ' ')

            {

                if(!characters.ContainsKey(c))

                   {

                      characters.Add(c,1);

                    }

                else

                {

                characters[c]++;    

                }

            }

         }

        foreach(var character in characters)

        {

        Console.WriteLine("{0} - {1}",character.Key,character.Value );

        }

    }

}