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

[Q]: bjjsMtBzzXIgYWPBZmaDL, iTxktmvBzzXIgYWPhbAyBE
[A]: BzzXIgYWP


[Q]: DFRoMPNDAzNgtLsEPseOzC, qykyPjDAzNgtLsEPYTsNrJaNK
[A]: DAzNgtLsEP


[Q]: XHbSSVozlzIPJspSD, tDSSVozlzFZFR
[A]:
SSVozlz