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: nOfXJySmVaJIindcJavXh, YpJWmVaJIindcJnoxyRvunG

Answer: mVaJIindcJ


Question: OXdSmcKG, XbDdSmJl

Answer: dSm


Question: zWrSeEtPYgiQsp, wZEtPYgbX

Answer:
EtPYg