And now all of a sudden we know that negative five, negative five is a member of C, so it can't be a member of C complement. So negative five is not a member of C complement. Zero is not a member of C complement. Zero sits in C, not in C complement. Negative, or I could say 53, 53 is a member of C complement. It's outside of C, it's in the universe, but outside of C. 42 is a member of C complement. So anyway, hopefully that helps clear things up a little bit.