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: UZbmGVDzIaf, qfHwqGVDzIsd

Answer: GVDzI

Question: fAsWQxuyBevvLogrSrgg, tmdBEUxuyBevvLogXjiMCbh

Answer: xuyBevvLog

Question: kPtDawQVTvIz, SMsqKawQVTqT

Answer:
awQVT