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

Q: ScUCglVzZFPjLVofNHOumU, mNodEXwpZFPjLVofYfSnBM

A: ZFPjLVof
****
Q: TWVTGNBh, nEVTGWq

A: VTG
****
Q: gsXjOJqcRIrH, LoLICOJqcRdkH

A:
OJqcR
****