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

SOLUTION: NwGVEwSSro

PROBLEM: nYoRQU, gQoRZQ

SOLUTION: oR

PROBLEM: edjRAatlaiCmWkpqMh, qDZYVWCDTRAatlaiCmYH

SOLUTION:
RAatlaiCm