And so those two electrons don't exist by themselves, and they're actually found on an H plus ion. So when these electrons combine with that H, we form a hydride. And so what happens is this hydride is picked up, and these electrons are picked up by this molecule here, nicotine amide and nucleotide. And so two of these electrons are found on a single NAD. And so this is the same thing as saying we form two NADH molecules, because when these combine, we form NADH. Okay?