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

SOLUTION: hydBo

PROBLEM: DUhUbmfLuOFAQann, kwnzfLuOFAErR

SOLUTION: fLuOFA

PROBLEM: spIqZoEK, lPXqZoUSX

SOLUTION:
qZo