2주차: https://colab.research.google.com/drive/1b1B6FEp7ImOiGKuLszD8nmINiQPflZWD?usp=sharing

3주차: https://colab.research.google.com/drive/1WS4JK0C9c34fBGGbhSyJdDKMhcHkOG05#scrollTo=lNBSVyq967Iu