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

Q: KvPFobZEGs, eKFobZEtnm

A: FobZE
****
Q: xMxyohPBlJIEBqghiMdBQPwq, xsBlJIEBqghlMosK

A: BlJIEBqgh
****
Q: cTAdsIYPpIP, ArJAdsIYPLDpg

A:
AdsIYP
****