How to take a text difference in a cell

Hello,

I am trying to get the text difference of data in two cells:



A,B,D,E,F,C,G,H, (next cell) A,D,F,G,H,

I would like the results to be: B,E,C

Basically, the letters that are in Column 1 but not in Column 2.

Thank you,
Rana