using System;

public class Program

{

    public static void Main()

    {

        char letter = 'A';

        string strLetter = "A";

        Console.WriteLine(letter);

        Console.WriteLine(strLetter);

        string word = "Word";

        char[] charArray = word.ToCharArray();

        foreach (char c in charArray)

        {

            Console.Write(c);

        }

    }

}