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: zRwQdelc, UdAUwQdejhe

Answer: wQde


Question: hRVyvwHqnN, geHeyvwHqiBiYJ

Answer: yvwHq


Question: dxqZUOvRprXyFfjQfTWBhR, biSVjOvRprXyFfDtuFWQ

Answer:
OvRprXyFf