I just paid and forgot about it, but I remembered it when I was entering the national scholarship program in February, and I looked at it. I think the sites you recommended will be very helpful to me, so thank you. You mentioned the need for pre-study a lot, so I somehow ended up taking the Jeongcheosan Prayer and finishing a Java book, but I still feel afraid of my shortcomings before the academy classes start.ㅠ,, But thank you for giving me a lot of motivation to listen carefully to the words you said in each video and to prepare hard for the remaining period.