I am a student who learned the C language roughly in my first year, thinking that I could just do my homework and get credits. As I went up a grade, I felt that my basics were lacking, so I looked for lectures late. Since it was not my first time with programming, I was not satisfied with lectures that focused on easy introductions, but this lecture is a basic lecture, but it also covers relatively in-depth content that a major should know and move on, so I am satisfied. This lecture was definitely needed. I plan to continue to follow the curriculum of the developer who is easy to understand! Thank you for creating such a high-quality lecture.