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

[Q]: wDSKHtWbCDqTeoBeiYHdcZD, MydQCwqTeoBeiYHdYMp
[A]: qTeoBeiYHd


[Q]: nOfXJySmVaJIindcJavXh, YpJWmVaJIindcJnoxyRvunG
[A]: mVaJIindcJ


[Q]: mUWjWIMuDiOIZHJeQY, XKVWIMuDiOITy
[A]:
WIMuDiOI