using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        var f = Convert.FromBase64String("SGVsbG8sIHdvcmxkIQ==");

        string originalData = "Hello, World!";

string key = "1234567890123456"; // Key must be exactly 16, 24, or 32 bytes long for AES

string encryptedBase64 = EncryptionHelper.EncryptData(originalData, key);

Console.WriteLine($"Encrypted Base64: {encryptedBase64}");

​

    }

}