"I’m reminded of Staislaw Lem’s short story, ”The Seventh Sally or How Trurl’s Own Perfection Led to No Good,” from The Mind’s I."
Reprinted from The Cyberiad.
Trurl and Klapaucius are robot inventors in a constant race to out invent each other. My favorite story is when one invents a machine that can make anything beginning with the letter "N" so the other tells it to make nothing. And it does.