$ /usr/bin/perl test.pl
Benchmark: timing 200000 iterations of Big, Kgb, Lan, Mat, Pak, St2, St3, Str...
 Big: 6 wallclock secs ( 5.39 usr + 0.0 sys = 5.39 CPU) @  37105.75/s (n=200000)
 Kgb: 2 wallclock secs ( 1.90 usr + 0.0 sys = 1.90 CPU) @ 105263.16/s (n=200000)
 Lan: 4 wallclock secs ( 3.94 usr + 0.0 sys = 3.94 CPU) @  50761.42/s (n=200000)
 Mat: 6 wallclock secs ( 5.51 usr + 0.0 sys = 5.51 CPU) @  36297.64/s (n=200000)
 Pak: 5 wallclock secs ( 4.61 usr + 0.0 sys = 4.61 CPU) @  43383.95/s (n=200000)
 St2: 4 wallclock secs ( 3.59 usr + 0.0 sys = 3.59 CPU) @  55710.31/s (n=200000)
 St3: 2 wallclock secs ( 1.78 usr + 0.0 sys = 1.78 CPU) @ 112359.55/s (n=200000)
 Str: 5 wallclock secs ( 4.41 usr + 0.0 sys = 4.41 CPU) @  45351.47/s (n=200000)

$ /opt/perl-5.26.0/bin/perl test.pl
Benchmark: timing 200000 iterations of Big, Kgb, Lan, Mat, Pak, St2, St3, Str...
 Big: 4 wallclock secs ( 4.15 usr + 0.0 sys = 4.15 CPU) @  48192.77/s (n=200000)
 Kgb: 2 wallclock secs ( 1.63 usr + 0.0 sys = 1.63 CPU) @ 122699.39/s (n=200000)
 Lan: 3 wallclock secs ( 3.26 usr + 0.0 sys = 3.26 CPU) @  61349.69/s (n=200000)
 Mat: 5 wallclock secs ( 5.14 usr + 0.0 sys = 5.14 CPU) @  38910.51/s (n=200000)
 Pak: 4 wallclock secs ( 4.07 usr + 0.0 sys = 4.07 CPU) @  49140.05/s (n=200000)
 St2: 4 wallclock secs ( 3.25 usr + 0.0 sys = 3.25 CPU) @  61538.46/s (n=200000)
 St3: 1 wallclock secs ( 1.55 usr + 0.0 sys = 1.55 CPU) @ 129032.26/s (n=200000)
 Str: 4 wallclock secs ( 3.48 usr + 0.0 sys = 3.48 CPU) @  57471.26/s (n=200000)