62 int main(int ac, char *av[])  in main()  argument
83 	while (ac > 1) {  in main()
85 			ac--;  in main()
89 			ac--;  in main()
93 			ac--;  in main()
97 			ac--;  in main()
101 			ac--;  in main()
107 	if (ac < 3) {  in main()
165 	if (ac == 3) {  in main()
166 		ac = 4;  in main()
170 	for (; ac > 3; ac--, av++) {  in main()