So that does not appear in this equation. And so the net equation of glycolysis following fermentation, specifically ethanol fermentation, this is our net equation. So a glucose goes in. We use two ATP, two orthophosphates two H plus ions and that produces two ethanol molecules, two ATP molecules, two H so molecules and two carbon dioxide molecules that came from this process. So we multiply that by two and that's where that actually comes from. And notice the NAD pluses and Nadhs are canceled out because they are regenerated in this step.