c:\test>b-recursive-nosub.pl
Ack(3,0): 5
Ack(3,0): 5
1 trial of Recursive Ack 3,0 (227us total)
1 trial of Iterative Ack 3,0 (111us total)

c:\test>b-recursive-nosub 8
Ack(3,8): 2045
Ack(3,8): 2045
1 trial of Recursive Ack 3,8 (13.698s total)
1 trial of Iterative Ack 3,8 (3.328s total)

c:\test>b-recursive-nosub 9
Ack(3,9): 4093
Ack(3,9): 4093
1 trial of Recursive Ack 3,9 (162.104s total)
1 trial of Iterative Ack 3,9 (13.234s total)