In this task, you are given two strings A, B. Find the longest common substring in the strings A and B.
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Question: RJMYumLAlhmnbhzKRzIOWsGrxGu, VEViqlihmnbhzKRzIBArjAhYrz

Answer: hmnbhzKRzI


Question: IIbJjQKWaoGKHGgWPcy, uNoMWaoGKHGqbnjmYQ

Answer: WaoGKHG


Question: koIZvrJmfKCO, TBvrtjcWIZvrJmfKRZDOE

Answer:
IZvrJmfK