19 	p1 = first_procedure(second_procedure(p2, p3),  in example()
23 	    p3),  in example()
28 	 second_procedure(p2, p3),  in example()
37 	p1 = first_procedure(second_procedure(p2, p3),  in example()
41 					      p3),  in example()
46 			     second_procedure(p2, p3),  in example()
55 	p1 = first_procedure(second_procedure(p2, p3),  in example()
59 			p3),  in example()
64 		second_procedure(p2, p3),  in example()
73 	p1 = first_procedure(second_procedure(p2, p3),  in example()
77 		p3),  in example()
82 	    second_procedure(p2, p3),  in example()