highlight names that appears in column 2 and 3 but not 1

[INN]

Hi
I have 3 columns. I want to highlight names that appears in column 2 and column 3 but not appeared in column 1. In this table, I want to highlight "David" because the name appears in column 2 and 3. How can I do that? Thank you very much.

Name1	Name2	Name3
Mary	Mary	Mary
Alex	Alex	Alex
Sam	Sam	Sam
Anna	David	David
	Anna	Anna

 

[Fluff]

How about

Fluff.xlsm
	A	B	C
1	Name1	Name2	Name3
2	Mary	Mary	Mary
3	Alex	Alex	Alex
4	Sam	Sam	Sam
5	Anna	David	David
6		Anna	Anna
7
Data

Cells with Conditional Formatting
Cell	Condition		Cell Format	Stop If True
C2:C10	Expression	=AND(COUNTIFS(A:A,C2)=0,COUNTIFS(B:B,C2))	text	NO
B2:B10	Expression	=AND(COUNTIFS(A:A,B2)=0,COUNTIFS(C:C,B2))	text	NO

 

[INN]

Thank you very much. Appreciate the help.

 

[Fluff]

You're welcome & thanks for the feedback.