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: oUEcuLINTDdvdOne, thzWccuLINTDQfNZwH

A: cuLINTD
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Q: RkxyINqTyxeAbhBrPDfIak, SoyxeAbhBrPeSD

A:
yxeAbhBrP
****