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

Q: HqaOvLaZbs, RifOvLaZkh

A: OvLaZ
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Q: QRPOwtZATjDoJDdRNNSOH, wiafFMwpAjDoJDdRNNuCDZ

A: jDoJDdRNN
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Q: QoznqYBWeY, JpnqYBrpx

A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
nqYB
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