A = 10  B = 1000000
Benchmark: timing 10 iterations of 1 Nothing  , 2 Mult     , 3 Array  
+  , 4 Hash     , 5 Sub (Ref), 6 Sub (Val)...
1 Nothing  : 30 secs (28.53 usr  0.03 sys = 28.56 cpu)
2 Mult     : 63 secs (49.93 usr  0.07 sys = 50.00 cpu)
3 Array    : 42 secs (37.05 usr  0.04 sys = 37.09 cpu)
4 Hash     : 99 secs (95.28 usr  0.09 sys = 95.37 cpu)
5 Sub (Ref): 127 secs (117.77 usr  0.09 sys = 117.86 cpu)
6 Sub (Val): 98 secs (93.28 usr  0.11 sys = 93.39 cpu)
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