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

[Q]: MSxTzCpiJAplpzSvLlNJS, oScCpiJAplpNVrqkn
[A]: CpiJAplp


[Q]: OVVkkdeHoFlyNROyCP, zFVUJbvkkdeHoFlysF
[A]: kkdeHoFly


[Q]: oanwEB, gInwsZ
[A]:
nw