Hello. I learned C language when I was a student, but I didn't use it often, so I wanted to learn it again, so I took the course. I knew the basics of C language, so I took the course to review it, but the content of the course didn't feel like reviewing, but rather learning from the beginning again. I wondered why I hadn't learned this concept for the first time, and what I had studied, so I felt like I was learning it for the first time while listening to the course. As I continued to practice along with the course, I wanted to know more, and I wanted to establish a good foundation for C language. It wasn't a short time, but through the course, I was able to learn a little bit about not only C language, but also the operating structure of the computer, and I was able to get a sense of why the language was made this way. Through this course, I want to create many programs and learn them, and have a fun programming life. Thank you for the course.