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

SOLUTION: ImMTISYd

PROBLEM: nFgMXUzpStDAybiwm, aNJrXUzpStDjp

SOLUTION: XUzpStD

PROBLEM: ezhoqdFko, fcVcshoqdFwS

SOLUTION:
hoqdF