20 [953 317 563 582 789 629 613 918 9 680 276 163 119 915 967 426 820 227 256 650]
lis: [ 317 563 582 613 680 915 967 ]
pryrt: [ 317 563 582 629 680 915 967 ]
Benchmark:
running
  lis, pryrt
 for at least 10 CPU seconds
...

       lis: 10 wallclock secs (10.51 usr +  0.00 sys = 10.51 CPU) @ 25210.27/s (n=265086)

       pryrt: 11 wallclock secs (11.26 usr +  0.00 sys = 11.26 CPU) @  0.18/s (n=2)

            (warning: too few iterations for a reliable count)

         s/iter       pryrt     lis
pryrt      5.63        --     -100%
lis   3.97e-005 14197064%        --