23 void fna(A *obj) {  in fna()  argument
24   throw obj;  in fna()
26 void fnb(B *obj) {  in fnb()  argument
27   throw obj;  in fnb()
29 void fnc(C *obj) {  in fnc()  argument
30   throw obj;  in fnc()
32 void fnd(D *obj) {  in fnd()  argument
33   throw obj;  in fnd()
35 void fne(E *obj) {  in fne()  argument
36   throw obj;  in fne()
38 void fnf(F *obj) {  in fnf()  argument
39   throw obj;  in fnf()