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

SOLUTION: ZSCzaAHGbN

PROBLEM: OgWFOfjNYmXVjBBvOdunIc, eGljKGnzFKFOfjNYmXVjdlqsT

SOLUTION: FOfjNYmXVj

PROBLEM: XxPgiMXmHnqLUI, dOKiMXmHqlTC

SOLUTION:
iMXmH