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

Q: XpFCxFOgTTNCnQzMnVPV, FMqzdOwgTTNCnQzedorxVPe

A: gTTNCnQz
****
Q: yOGvgtAmwMwcIRtJ, cQtAmwMwcIRjfjO

A: tAmwMwcIR
****
Q: FssbkkWbYRbrCrEqeCOtyHm, PCTCcAaPVWbYRbrCrENT

A:
WbYRbrCrE
****