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: pySBCdpe, AEBCdOR

Answer: BCd


Question: UTdardKNThdYrGKMqZPeg, mvrThdYrGKMlcCxBtak

Answer: ThdYrGKM


Question: wbFDXJQDQxQJzudOUlR, QEbsIDXJQDQxQsSYIutwU

Answer:
DXJQDQxQ