 So, let's try this one together. It's one of these cyclic-taloalkanes. Let's name this molecule. Can anybody name this molecule? Yeah, okay, I know you can. So, what is the name that you have there, bless? Uh-huh. So, one promo. Cyclo-pexin. Okay. So, I have a couple of questions. Usually, when I see wedges and dashes, right, I usually want to put an R or S in front of the molecules. Why in this particular case did I not do that? The substituents you mean, right? Yeah. Okay. So, which two would those be? I think you have the answer to that. Two around the ring. Yeah, so the two. So, if we look here, right, so obviously, I guess it's not always obvious in organic chemistry, but there is a hydrogen there. Okay? So, of course, this is different than this, which is different than this, but if we look at this ring substituent and this ring substituent, we'll find that they're the same going around, right? Because carbon and carbon are the same, so we've got to go to the next one. Carbon and carbon are the same? Got to go to the next one. Well, it's the same carbon, so then we're going to go back around. So this one, actually, there's no stereo center there, even though it kind of looks like there is. And, of course, there's no stereo center there, right, for similar reasons. This one only has one, so that's the same substituent, and both of those are the same substituents. So is everybody okay with this naming? And why did we put the bromo before the diamethyl? Because of alphabetical order. Alphabetical order, okay? Very good, yes. And remember also that you have to indicate 4, 4, okay? And remember dashes were dashes were supposed to be commas were commas were supposed to be, okay? Any questions on this one? Okay, wonderful.