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

[Q]: ATmVEtUuZOgsBUuL, UMUuZOgsBPVT
[A]: UuZOgsB


[Q]: IVnbnqBqdPcXfHotUzCYoaGQy, PAlyypBRRBqdPcXfHotpZs
[A]: BqdPcXfHot


[Q]: ZPlHtqeuxEzKNdDmSjg, rSJuxEzKNdjm
[A]:
uxEzKNd