static public List<Path> PathLoad()
 {
     string line;
     Path sequence = new Path();
     List<Path> paths = new List<Path>();
     Point3D point = new Point3D();
     StreamReader reader = new StreamReader(@".../.../loadpath.txt");
     using (reader)
     {
         while ((line = reader.ReadLine()) != null)
         {
             if (line != "-")
             {
                 string[] chars = line.Split(',');
                 point.X = double.Parse(chars[0]);
                 point.Y = double.Parse(chars[1]);
                 point.Z = double.Parse(chars[2]);
                 sequence.AddPointToSequence(point);
             }
             else
             {
                 paths.Add(sequence);
             }
         }
         return paths;
     }
 }
    static void Main()
    {
        Point3D point1 = new Point3D(2, 3, 8);
        Console.WriteLine(point1);
        Console.WriteLine(Point3D.Point0);
        
        double distance = TwoPointsDistance.CalcTwoPointsDistance(new Point3D(-7,5,2), new Point3D(5,-12,6));
        Console.WriteLine(distance);

        Path sequence = new Path();
        sequence.AddPointToSequence(point1);

        List<Path> paths = PathStorage.PathLoad();
        foreach (var item in paths)
        {
            PathStorage.PathSave(item);
        }
        
    }