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

SOLUTION: gRUjEoo

PROBLEM: uDaqoOpUtLDdTGTO, ncIgBjDPqoOpUtLDdTNtiEyarDO

SOLUTION: qoOpUtLDdT

PROBLEM: hyGidkXrUKAaLLqOtnvYLn, lUZcdkXrUKAaLLpHK

SOLUTION:
dkXrUKAaLL