Thank you. To be honest, I don't have any lecture experience yet, so there are some parts that I didn't think about when filming this on YouTube. It would be a shame to just leave it alone, and I wanted to communicate, so I provided it for free.ㅎㅎ I'm making a new lecture, and I'm going to make the PPT a little cleaner and make sure that the audio can be delivered to the listener more stably. If there's anything you didn't hear or the explanation was lacking, please ask me anytime and I'll let you know. Thank you for listening to the lecture and thank you for your valuable feedback.