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

[Q]: ohueEOjHvAuoFVmMFft, ovdJPqOjHvAuoFVGbvxzlnE
[A]: OjHvAuoFV


[Q]: CkZOSZevST, bbZOSZIg
[A]: ZOSZ


[Q]: wWkhzctLXALOVoCulxt, UzFKuWhkhzctLXALOtPJyoIWrCB
[A]:
khzctLXALO