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

[Q]: eedZoMwKgDhdsgs, kMMwKgDLm
[A]: MwKgD


[Q]: bSBuJiZniSlZtO, AcuJiZniSRAOAv
[A]: uJiZniS


[Q]: zeznputhmoMstPBXLPJ, yhZyVqmZmoMstPBXhONrROBC
[A]:
moMstPBX