using System;

​

public class Program

{

    public static void Main()

    {

        // Input string.

        string value = "testing";

        // Use ToCharArray to convert string to array.

        char[] array = value.ToCharArray();

        // Loop through array.

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

        {

            // Get character from array.

            char letter = array[i];

            // Display each character.

            Console.WriteLine("Letter: " + letter);

        }

    }

}