Perform the indicated arithmetic in terms of the bars that make up numbers on a liquid crystal display. For example, 0 - 1 removes the right part of the 0 and leaves a "C" shape. A couple of the results needed to be tilted 90 degrees to look like letters, and so we gave those clues at the same angle. The answer is NORDSTROM CONCIERGE, on the 5th floor.

An early version of this puzzle said: "Not affiliated with the Libra Operation." This was a reference to a kindred puzzle in BANG 12.