static void Step5789()
{
Console.WriteLine();
Console.WriteLine("5789");
Console.WriteLine("{0:F6} ({1:F6})", Lab02.Task5789(1, 1, 3, 4), 3.6055);
Console.WriteLine("{0:F6} ({1:F6})", Lab02.Task5789(-2, 4, 8, -10), 17.2046);
Console.WriteLine("{0:F6} ({1:F6})", Lab02.Task5789(0, 0, -5, -7), 8.6023);
Console.WriteLine("{0:F6} ({1:F6})", Lab02.Task5789(0, 0, 0, 0), 0);
Console.WriteLine("{0:F6} ({1:F6})", Lab02.Task5789(-1, -3, 2, 9), 12.3693);
}