 I would suggest you to talk to the professors or TA. Just tell them directly why do you like the class and how can you change it. If the problem is, oh, I just don't really understand or I just don't like this class, you can always talk to your academic advisor. Academic advisors are there to help you with your classes and your transcripts and everything. So if you want to drop a class, you want to add another class, just always go to academic advisors. And it's good to know that you have to be in touch with the academic advisor. Medina, what's your take on that? I think having a good program of study, working with your academic advisor, is very important. Working with the professor is important, knowing that there's an add drop period. And it's usually two weeks, depending on the university. And so you don't want to decide six weeks into a class that you don't want to take the class. You really want to decide pretty early that you don't want to take the class. There's financial penalties and all sorts of things. Financial penalties plus your grade, you can get an incomplete, et cetera, et cetera. So it's very important to figure out within the first two weeks. So depending on your school, of course, what the criteria is to whether you want to drop the class, you want to change the class. But again, keep in touch with the academic advisor and talk to the professors. Professors are very friendly and approachable, correct, Lili? Yeah, they're there to help you. And then, so just always feel free to ask the professors. If you're not comfortable talking to your professors, you might want to talk to your teaching assistants, or there are any in the class. So.