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

SOLUTION: exXGlpB

PROBLEM: rRmkmETbjzCzZZxihrVdefxfcenJ, ogQtzAgWjKCzZZxihrVdRswMCmngp

SOLUTION: CzZZxihrVd

PROBLEM: wMAjrXqGOhZFUrvhVXIbMcrX, zmBRUOihZFUrvhVXqsZ

SOLUTION:
hZFUrvhVX