So this is really our change in temperature over the first, over those 10 minutes. And we can actually evaluate it. We know what our temperature was after 10 minutes. H of 10 is 43 degrees Celsius. So this is 43 right over here. And from that, we're going to subtract our initial temperature, our temperature at zero minutes, which is 66 degrees Celsius. We're gonna subtract 66 degrees Celsius.