static void Main()
{
var p1 = new Point3D(2, 1, 4);
Console.WriteLine("Point 1: {0}", p1);
Console.WriteLine("Point O: {0}", Point3D.O);
Console.WriteLine();
Console.WriteLine("Distance between points 1 and O: {0}", Distance.GetDistance(p1, Point3D.O));
var path1 = new Path(p1, Point3D.O);
Console.WriteLine();
Console.WriteLine("Path to save: {0}", path1);
PathStorage.Save(path1, "MyPath");
Console.WriteLine();
Console.WriteLine("Loaded path: {0}", PathStorage.Load("MyPath"));
}