Blanks Cells Highlights in Conditional Formatting

[SAXON10]

Hi,

How to apply the conditional formatting for blanks cells with multiple criteria of the following data.

https://www.dropbox.com/s/bfumzp5zzwu77bo/CFCB.PNG?dl=0

CODE	A1	A2	A3
SUBJECT	SUBJECT 010	SUBJECT 010	SUBJECT 009
EXAM 5			GRADE1
EXAM 4			GRADE1
EXAM 3			GRADE1
EXAM 2	GRADE4		GRADE1
EXAM 1			GRADE1
SUBJECT 001	GRADE3		GRADE1
SUBJECT 002
SUBJECT 003	GRADE1
SUBJECT 004	GRADE2	GRADE3	GRADE2
SUBJECT 005		GRADE3	GRADE2
SUBJECT 006		GRADE3	GRADE2
SUBJECT 007	GRADE3	GRADE3	GRADE2
SUBJECT 008	GRADE1	GRADE3
SUBJECT 009
SUBJECT 010		GRADE3
SUBJECT 011
SUBJECT 012
SUBJECT 013
SUBJECT 014
SUBJECT 015

<colgroup><col span="4"></colgroup><tbody>
</tbody>

 

[Joe4]

I think you forgot to tell us exactly what the criteria is.