weights([97,74,39,75,22,
	 61,45,64,41,37,
	 56,75,99,84,42]).

values([57,47,92,131,186,
	53,173,67,26,170,
	81,96,159,48,36]).

demands([48,46,80,13,57,
	 66,39,38,78,16,
	 38,39,33,34,18]).