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

Q: txJhzNeBj, qLJhzNesV

A: JhzNe
****
Q: ilgSzrcUKLTNLJbMKMKSt, hFXIuUKLTNLJbMKWxSCkDjY

A: UKLTNLJbMK
****
Q: oIdUbHwQLGuBiTyJF, WqQdUbHwQLGuBoivJUqsf

A:
dUbHwQLGuB
****