1computing fact1(5) 2in wrapper1-pre: fact(5) 3in wrapper2-pre: fact(4) 4in wrapper1-pre: fact(3) 5in wrapper2-pre: fact(2) 6in wrapper1-pre: fact(1) 7in wrapper2-pre: fact(0) 8in wrapper2-post: fact(0) = 1 9in wrapper1-post: fact(1) = 1 10in wrapper2-post: fact(2) = 2 11in wrapper1-post: fact(3) = 6 12in wrapper2-post: fact(4) = 24 13in wrapper1-post: fact(5) = 120 14fact1(5) = 120 15