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

SOLUTION: gTTNCnQz

PROBLEM: eFUexDIFlaPDUwrOb, mTvkKGUxDIFlaPDUwxGVpnIwbi

SOLUTION: xDIFlaPDUw

PROBLEM: AJKges, AoKgVa

SOLUTION:
Kg