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

SOLUTION: ZUNCUHtIi

PROBLEM: TizkNtJUPHfhmGQ, enzehVkNtJUPHunpG

SOLUTION: kNtJUPH

PROBLEM: sYaABZJTdM, MrQOBZJTyuKc

SOLUTION:
BZJT