Advertiser Number	Ad Month	Category Code
A228	Jul	1
A228	Aug	1
C048	Jul	1
C048	Aug	5
C048	Sep	5
F410	Sep	2
M321	Jul	3
M321	Aug	4
P124	Aug	1
P124	Sep	2
P124	Jul	2
W456	Jul	1
W456	Aug	2
W456	Sep	5