TASK DEFINITION: In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.
PROBLEM: jexvmCmveGzFUimQMx, RVwOSJveGzFUimrcOwjEwe

SOLUTION: veGzFUim

PROBLEM: koddLvYmRXDUuUnW, GnqDYGmmRXDUuUquAnf

SOLUTION: mRXDUuU

PROBLEM: wNVrKa, ueVrLa

SOLUTION:
Vr