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

wcJmSloqlddFOfv, szhUIAqzSloqlddFDJz
SloqlddF

cvRdSsuNwGVEwSSrowDpaOu, gFMcLKIeLwNwGVEwSSroUGskaoloqC
NwGVEwSSro

DTniMDaxviukqWnS, DDzrDaxviukqncC

Daxviukq