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

Q: wLLwjL, arLwXm

A: Lw
****
Q: aeQjEeiWGONmzGimhGiw, RIEeiWGONmOZuVYr

A: EeiWGONm
****
Q: alpVArUu, NTspVAwiV

A:
pVA
****