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

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


[Q]: lsNwypFwhKP, diEfLwypFwEKqCN
[A]: wypFw


[Q]: eNuawupVqQ, RIawuplUIf
[A]:
awup