And then I say, what's the probability using the binomial distribution? And then this is my final position. If I take 0 steps to the left, then I take 4 steps to the right, so my final position is at 4. So that's this scenario right here. Let me switch my color back to yellow. It's easier to see. If I take 4 steps to the left, I take 0 steps to the right, and so my final position is going to be at minus 4.