day11-input.txt

The first floor contains a polonium generator, a thulium generator, a thulium-compatible microchip, a promethium generator, a ruthenium generator, a ruthenium-compatible microchip, a cobalt generator, and a cobalt-compatible microchip.
The second floor contains a polonium-compatible microchip and a promethium-compatible microchip.
The third floor contains nothing relevant.
The fourth floor contains nothing relevant.