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

[Q]: YCAyruPTTHWhCYaiXfIl, OETdzqAyruPTTHWgS
[A]: AyruPTTHW


[Q]: XMtSwZVAHsNYhbyDm, asAVAHsNYhSPuNLrV
[A]: VAHsNYh


[Q]: gkgHvVVipveDFe, NFMYMgHvVVipveQRtt
[A]:
gHvVVipve