using System;

using System.Collections.Generic; 

public class Program

{

    public static void Main()

    {

        var InputString = "Apple";

        char[] charArray = InputString.ToCharArray();

        Tuple<int, int, string> result; 

        foreach(var item in charArray)

        {           

            int j=0;

            for(int i=0; i < charArray.Length; i++)

            {

              if(item == charArray[i])

                j++;      

            }

            result.

            // letterCollection.Add(j, item);       

            Console.WriteLine(j + " " + item);          

        }

    }

}