And one way to do it is using a Venn diagram. So let me draw a Venn diagram. So Venn diagram is one way to represent it. And the way it's typically done, my intention is that you would make a rectangle to represent the universe that you care about. In this case, it would be all the chocolates. So all the numbers inside of this should add up to the number of chocolates I have. So it should add up to 12.