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: aZcGMvzBhazkCIFqpVe, AOljBvzBhazkWXeTuA

Answer: vzBhazk


Question: SyweIt, ILweip

Answer: we


Question: dKFjSssPZroNspUtHB, NRPZroNspUXkeFfz

Answer:
PZroNspU