• 1차 https://colab.research.google.com/drive/15gn3djYXmtl9f_xMfyHSnutf5ueenLR0?usp=sharing
• 2차 https://colab.research.google.com/drive/1LLEaEDQmhEv0gmgCL08NvbVQf90pOEgN?usp=sharing
• 3차 https://colab.research.google.com/drive/1_PP91_TO4Oj4WG3-So5epPHpteRNrd7d?usp=sharing