List all two digit numbers that if reversed and added to the original number create a perfect square.
29 38 47 56 and their reverses add to 121.
(The 4 line computer program is simply too easy to resist writing.)
If you ask what 3 digit numbers reversed and added make a cube, you can get a pair as well (and a 2nd pair if you allow a trailing/leading 0).
Edited on December 4, 2018, 9:51 am
soln
