But actually, let's calculate the sum of squares between. So what is this going to be? This is going to be equal to, I'll just scroll down, running out of space. This is going to be equal to, this right here is 2 minus 4 is negative 2 squared is 4. And then we have 3 4's over here. So it's 3 times 4 plus 3 times 0 plus, what is this? The difference between each of these, 6 minus 4 is 2, squared is 4.