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

Q: BVipiZoGXaWdjmDsxWP, yxppsiYkiZoGXaWdjoDRuKW

A: iZoGXaWdj
****
Q: sUdaWtsiRgqAYHykrHwjyDvZgD, MJdFXYiRgqAYHykrakSGHMr

A: iRgqAYHykr
****
Q: sKxhADrhghrLBRmvHX, qUbYAtRADrhghrIP

A:
ADrhghr
****