They sat at rows and rows of long, thin tables and stiff molded plastic chairs. Each of them slid the blocks back and forth, up and down, until they got the darkest block out of the maze. At the end of each maze, a new one presented itself, appearing the moment the puzzle was complete. They had to do this, there was no choice. The men in the booth watched, constantly, to make sure a block was being moved at every single moment. Hesitation was not permitted, nor was looking away from the task at hand. And so life went.