Now, as I mentioned in the beginning, in this searing structure we have anywhere from ten to 14 C subunits and that means anywhere from ten to 14 of these H plus ions can actually move across the searing every time the searing rotates 360 degrees. So 360 degree rotation of the epsilon of the gamma epsilon stock produces three ATP molecules. We multiply that by the range of ten to 14 H plus ions that move across the ATP synthase in a single 360 degree rotation. We see that ten divided by three gives us about 3.33 and 14 divided by three gives us about 4.67. And so this is the range of protons that are needed to actually synthesize a single ATP molecule. And so we see that on average about four protons must move through the ATP synthase to actually generate a single ATP molecule.