Thank you for making this lecture. I feel good just listening to this far. I got a lot of help from Mr. Kim Young-han. These lectures helped me a lot in changing jobs, and it was a useful and fun time to hear stories about understanding Spring and practical work. Thinking back, it seems like last year, except when I was working, I was full of reading books or listening to Mr. Young-han's lectures. I've never actually met him, but I'm really grateful to Mr. Young-han for always being by my side.