President Lee Jae-myung met with big tech CEOs sequentially in San Francisco, United States. Meeting OpenAI CEO Sam Altman, President Lee greeted him by saying, "Thanks to you, I've been working hard and making good use of ChatGPT." How did Sam Altman respond to this?

(Producer: Jeong Yu-mi / Video Editor: Na Hong-hee / Designer: Lee Jung-joo / Production: Digital News Department)