set advert := TV, radio; 
# 1 min. time on TV, radio

param audience :=
TV	5000
radio	1000 ;

param cost := TV 1500, radio 200;

param: cr_hrs tech_hrs := 
TV	30	10
radio	10	8 ;

param tot_money := 2500;	# total money available
param tot_cr_hrs := 80;		# total manpower available
param tot_tech_hrs := 40;	# total days available