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

Q: UmYbssMbmsXkKQuzNasLOib, EMqlbmsXkKQuzNcyHrpZXOQW

A: bmsXkKQuzN
****
Q: RinootTGLjbRGYznmBdH, oRMtTGLjbRGYzwEVHsjW

A: tTGLjbRGYz
****
Q: xEbUyyFLHrVGgE, HJuXATbUyyFLHivf

A:
bUyyFLH
****