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

SOLUTION: EOrEgv

PROBLEM: lLxXqKscqizXTO, TqrKscqizutDudo

SOLUTION: Kscqiz

PROBLEM: eRbKnpwzogxSLseqApyeH, kjYFwzogxSLsNxHBY

SOLUTION:
wzogxSLs