using System;

using System.Data;

using System.Xml;

using MoreLinq;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var f = "jaffer".AsEnumerable().CountBy(x => x);

        foreach( var i in f)

        {

            Console.WriteLine(i.Key + " " + i.Value);

        }   

    }

}