So let me give, so I want to draw the horizontal axis someplace around here. T is positive, it looks something like that. And so let's just make, let's make this, let's make that 200 and, let's make that 300. And so then this would be 200 and 100. 200 and 100 there. And then that would be negative 100, and then that would be negative 200, and then that would be negative 300. And we see on the T axis, our highest value is 40, we go between zero and 40.