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

Q: wDSKHtWbCDqTeoBeiYHdcZD, MydQCwqTeoBeiYHdYMp

A: qTeoBeiYHd
****
Q: PShMbsbexXGlpBuMMDZZS, sVqGxSexXGlpBxuHXoI

A: exXGlpB
****
Q: DYOpOuVBnakkckO, UfuuZqOuVBnakkGcYQfOu

A:
OuVBnakk
****