In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.

Q: gXwuhXJrEdzGOmLSKdK, TohXJrEdzGavU

A: hXJrEdzG
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Q: ilgSzrcUKLTNLJbMKMKSt, hFXIuUKLTNLJbMKWxSCkDjY

A: UKLTNLJbMK
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Q: KdbThbAmfKmwHFHhuGmhuFl, KnhhbAmfKmwHFhjnNYQqxUI

A:
hbAmfKmwHF
****