static void Main(string[] args)
{
Double test = new Double();
test.Add((4));
test.Add(1);
test.Add(2);
test.Add(3);
test.Print();
double max = test.MaxElement();
Console.WriteLine($"Max element: {max}");
int index = test.FindIndex(max);
Console.WriteLine($"Index of max element: {index}");
test.DeleteAfterIndex(index);
Console.WriteLine("Deleting elements after max element");
test.Print();
Console.WriteLine($"Number of elements less than average: {test.LessThanAverage()}");
test.RemoveInd(3);
Console.WriteLine("After removing element by index");
test.Print();
}