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

BdqUloJanutXoOyfLsuA, NRDloJanutXoOQY
loJanutXoO

nrIHKzJCdAQzUDRBYpg, JDzJCdAQzUMMYrLcfO
zJCdAQzU

WUiKfTkdgLFJpmYDWbZdA, FOnDRgLFJpmYDCpC

gLFJpmYD

