Let me do the yellow. Plus f prime of four times, times, times 4.36, 4.36, let me make this actually in a new color just so we see it. So 4.36, so times 4.36 minus four, minus four. Actually, let me make all the fours one color too so you see it's the same. So just like that. So what is this going to be? Well, this we already established is positive two.