You're right, @momonster! I normally can subtract only ten, but if I would have won if I had subtracted the full ten, too. It was just easier going down to zero than trying it would have been figuring out the negative numbers. >>
/I think, today,/ he thought back, /the important fact is that I don't/ need /to be better than him. He can just be a person. And I... I can just be one too./ — Adolin (Wind and Truth by Brandon Sanderson)