So let's just think about each of them. Let's consider the left and the right Riemann sums. So first the left, and I'm just gonna write left for short, but I'm talking about the left Riemann sum. So they don't tell us how many subdivisions to make for our approximation, so that's up to us to decide. Let's say we went with three subdivisions. Let's say we wanted to make them equal. They don't have to be, but let's say we do.