Hello. Minseong 1. It is more important to review the lecture content and solve the introductory problems on your own than to ask and solve the introductory problems on GPT. It is more important to become familiar with programming itself than to find the answers. 2. The introductory course approaches programming in stages for beginners. So, I prepared the lecture without using too difficult math so that even upper grade elementary school students can understand it. In the beginning, simple arithmetic operations will appear, but later, you will be able to learn more complex programming through branching and repeating statements. Thank you.