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

[Q]: aeQjEeiWGONmzGimhGiw, RIEeiWGONmOZuVYr
[A]: EeiWGONm


[Q]: ScUCglVzZFPjLVofNHOumU, mNodEXwpZFPjLVofYfSnBM
[A]: ZFPjLVof


[Q]: EkeLBa, RieLUM
[A]:
eL


