ok 1 - combinations
ok 2 - johngg
ok 3 - permutations
            (warning: too few iterations for a reliable count)
                   Rate permutations       johngg combinations
permutations 4.76e-02/s           --        -100%        -100%
johngg           70.0/s      146784%           --         -69%
combinations      229/s      480720%         227%           --
1..3