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: oXZmCSdFrMumlZcP, eFpOZmCSdFrIuHeS

Answer: ZmCSdFr


Question: bSBuJiZniSlZtO, AcuJiZniSRAOAv

Answer: uJiZniS


Question: MafuBmIiJnS, ziPdiBmIiJHRJ

Answer:
BmIiJ