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

ohueEOjHvAuoFVmMFft, ovdJPqOjHvAuoFVGbvxzlnE
OjHvAuoFV

kIBDjQLEZepVNHqnKqhine, hTZepVNHqnYTajyzv
ZepVNHqn

IBYVSl, FKYVLv

YV