클래스 스토리5385개의 글

It's right to do -1 because it's an increase rate. I made a mistake. 
I'm sorry to confuse you. ^^;

I left a comment last time on what someone asked me well, but I can't check it right now because there are many comments. 
Let me fix this question. 

Thank you for your question. 
Have a nice day.

Nice to meet you. 
It will help you learn. 
Way to go!

Cheer up for the next class!