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: XMtSwZVAHsNYhbyDm, asAVAHsNYhSPuNLrV

Answer: VAHsNYh


Question: esIMEOgV, tNIMEybb

Answer: IME


Question: wnIMpkuRuJ, EkMpkuKzx

Answer:
Mpku