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: yrIDSuVuQU, UXTSuVuLcch

Answer: SuVu


Question: bjjsMtBzzXIgYWPBZmaDL, iTxktmvBzzXIgYWPhbAyBE

Answer: BzzXIgYWP


Question: PgSGIbQiJXGNSabUEqo, GHPLiJXGNSamqrncv

Answer:
iJXGNSa