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: gTjTwC, OUjTgM

Answer: jT


Question: OUNqomxFcLXhWdfB, gdqomxFcLHQPCu

Answer: qomxFcL


Question: tKEzWsfyWmrJmFIt, vYFyWmrJmFXwqnH

Answer:
yWmrJmF