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

andNlOdIcQMyZvc, vCMENolkslOdIcQMyZJtCFo
lOdIcQMyZ

aBlALASwuwTZmy, MdwASwuwIW
ASwuw

PAXDQvhlEiptfacyIXY, HRWNzpWvhlEiptsulnXkv

vhlEipt