Treat 	 Grill 1 	  Grill 2
 (1)  	  4        	 2
  a  	  2        	 50
  b  	  0        	 1
  c  	 56        	 17
  ab  	  4        	 3
  ac  	  4        	 3
  bc  	 12        	 3
  abc  	  0        	 0