Read dll done in C++ with console F#

[Metaconta]

I want to make this code in C # console, adapt it to F #.
What it does is read a dll made in C ++.

using System;
using System.Runtime.InteropServices;

namespace Consola_cs
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine(Marshal.PtrToStringAuto(SUPER_DLL.Mensaje()));
            Console.WriteLine(SUPER_DLL.Suma(1764, -764).ToString());

            // Pulse cualquier tecla para salir.
            Console.ReadKey();
        }
        internal class SUPER_DLL
        {
            [DllImport("Super_dll.dll")]
            extern static public int Suma(int a, int b);
            [DllImport("Super_dll.dll")]
            extern static public IntPtr Mensaje();
        }
    }
}

Thank you.

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