static void Main(string[] args)
        {
            emptyDel empty = new emptyDel(opgave1);

            empty();
            floatDel floaty = new floatDel(opgave2);

            Console.WriteLine(floaty());
            fullDel fully = new fullDel(opgave3);

            fully("Grønne", 19, 185f);
        }
        static void Main(string[] args)
        {
            SquareDel square = x => x * 2;

            Console.WriteLine(square(5));

            FloatDel flud = (x, y, z) => x + y + z;

            Console.WriteLine(flud(9.1f, 19.4f, 7.4f));

            emptyDel empty = () => "Hello world";

            Console.WriteLine(empty());
        }