Now, the probability of getting four heads in a row either way is going to be the sum of this and this, or the sum of that and that, which is going to be. Let me keep my calculator out. So it's going to be equal to. I can just take the previous answer. Let me just retype it so I don't confuse you. So 0.015625 plus 0.0686296875. I'm going to round it anyway, so it won't matter too much.