I completed the course by reviewing the first meeting with variables. Not only the technical part, but also confidence can be gained. Each lecture starts with "Hello" and ends with "Thank you." I don't think I missed a single lecture. I think it is a lecture full of sincerity. I could feel the sincerity even in the thumbnails that I could see when I clicked on the lecture. The thumbnails clearly convey the content, so I could get the effect of review just by looking at the thumbnails. It seems that the professor personally wrote the content that appears when I completed the course, and I was touched by the content. I express my deepest gratitude. Lastly, I will end with a poem that I like. This poem came to mind while watching the first meeting with variables lecture. (Before I gave that memory a name, he was just a memory.) Flower Kim Chun-soo Before I called his name He was just a gesture. When I called his name He came to me And became a flower. Just as I called his name Who will call my name That fits my color and fragrance? I want to go to him and become his flower too. We all want to be something. You to me and I to you I want to become an unforgettable meaning.