Xerox Program Availability List - Bitsavers.org
For each possible pair, (a, b), you may now calculate c: a b c. 1. 1. ?3 but c is positive. 1. 2. ?9 but c is positive. 1. 3 impossible. 1. 4. 15. 1. 5. 9.
For each possible pair, (a, b), you may now calculate c: a b c. 1. 1. ?3 but c is positive. 1. 2. ?9 but c is positive. 1. 3 impossible. 1. 4. 15. 1. 5. 9.