// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002225/char-to

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {   

        char input = 'E';

​

        // C# Extension Method: Char - To

        var output = input.To('F');

        foreach(var c in output)

        {

            Console.WriteLine(c);

        }

    }

}