And so we form when this happens, we form Nfadh two because each of these HS contains an electrons and that gives a total of two electrons. And so three of these are nadhs and one of them is fadh too, as we'll see in this discussion here. Now, this is what we form when a single pyruvate is broken down. But actually we have two of these. So we have to multiply all this by two. So the net result of the citric acid cycle is we form two or four co, twos 16 electrons and two GTP molecules.