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: HhBhJMpxpty, MxTJMpxnQEf

Answer: JMpx


Question: sCMyALRSDknURKqZDlqFf, oEIfHyALRSDknUrnMebev

Answer: yALRSDknU


Question: VaXnrIhKOVJrdDyw, qvpohKOVJrdCyU

Answer:
hKOVJrd