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

SOLUTION: zfc

PROBLEM: sHndIbPaygfNvnquxIHeteW, huLmJWXZIgfNvnquxIViQDhbuoL

SOLUTION: gfNvnquxI

PROBLEM: zGkhAuwmyO, GENAuwmcgFp

SOLUTION:
Auwm

