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

Answer: bLBKbDOu


Question: UQDJDbzqDxsMzUL, BxClJDbzqDxLxlngc

Answer: JDbzqDx


Question: ebiTWaOzvm, HFWaOzmF

Answer:
WaOz