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

SOLUTION: MimvyQP

PROBLEM: tGBRASi, QABRAtL

SOLUTION: BRA

PROBLEM: UzidBcJdCEgfLrpKLlgv, lreRYJdCEgfLrpbvQXJMJCf

SOLUTION:
JdCEgfLrp