Lecture https://drive.google.com/file/d/0B5f6BljQ4IabSzRTNHFENG1qb1E/view?usp=sharing Code https://www.dropbox.com/sh/5j0h9d1si2ds5xm/AACYWi2vvlFcWNv5zCvYT1qPa?dl=0