Teacher : and I go what was the question we were asking?
Student1: Nothing.
Student1: Did we have a question?
Teacher : Did we have a question. Yeah. The first question we asked
Teacher : was which of these has the biggest volume. And then the second part of my question was --
Teacher : and I'm not sure we ever asked -- when is the maximum?
Teacher : When do we get the maximum volume?
Teacher : And we know that now, it appears to be 11 and 22,