using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        int i = 0;

        char[] sought = Console.ReadLine().ToCharArray();   

        char[] jim = {'A', 'B', 'C', 'D', 'E'};

        while(i < jim.Length){

            if(jim[i] == sought[0]){

                Console.WriteLine("Found: {0}",jim[i]);

            }

            i++;

        }

    }

}