help requested!!

Column A holds a value of Div1, Div2 or Div3
Column B holds a value from Level1 to Level6
Repeats in either column are allowed. A sample is shown below.

I need to place (in N1, O1, P1,...) the UNIQUE Levels in Division 1 (no
doubles), preferably in alpha order.
In the example, this would be Level2, Level3, Level5

A B ... N O P ...
Div1 Level5 Level2 Level3 Level5
Div1 Level2
Div2 Level5
Div3 Level2
Div1 Level5
Div1 Level3
Div2 Level6

This is part of a process that I currently do manually. I'd love to do this
by code, but I'm really stuck.

Thank you in advance for any assistance.
anny