In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.

Q: pBDnbfrAxJfVhPBxheXZGp, LMtorAxJfVhPnnaed

A: rAxJfVhP
****
Q: wNiHcaiUPHnjp, aSTmjcaiUPHFzOu

A: caiUPH
****
Q: ZrIncmArooOUdqNaygQT, AjArooOUdqHHEmH

A:
ArooOUdq
****