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

Q: dmigbcBoWdAIyaeE, zXiKQFbcBoWdAIyaEypIjJpwbU

A: bcBoWdAIya
****
Q: ksRxEVrz, cOMRxEViwF

A: RxEV
****
Q: kJAywpZSHDPrrUYHItdyZ, dAhSETAywpZSHDPrFnEWhCFMY

A:
AywpZSHDPr
****