public override bool Equals(object obj)
            {
                Output op = obj as Output;

                if (len != op.len)
                {
                    return(false);
                }
                return(Helfer.ArrayVergleich <int>(arr, op.arr));
            }
 public override bool Equals(object obj) => Helfer.ArrayVergleich <int>(((Output)obj).erg, erg);