using System;

public class Program

{

    //h – 1

//e – 1

//l – 3

//o – 2

//w – 1

//r – 1

//d – 1

    private string GetRepeatedCharCount(string input)

    {

        //Type 1

        //var getCount = input.IEnumerable().Select(s=> s.Char.Count() > 0).GroupBy(s);

        string FinalResult = string.Empty;

        //Type 2

        for(int count = 0;count < input.Length;count++)

        {

            var letter = input[count];

            var res = input.Contains().Select(s => s.char == letter);

            FinalResult += letter + res.Count()+ "\n";

        }

        return FinalResult;

    }

    public static void Main()

    {

        Program pp = new Program();

        Console.WriteLine(pp.GetRepeatedCharCount("helloWorld"));

    }

}