The zip (Z) operator

The Z operator does pairwise combinations of elements from two or more lists:

> my @first = <Larry    Damian Audrey  Randal>
> my @last  = <Wall     Conway Tang    Schwartz>
> my @nick  = <TimToady conway audreyt merlyn>

> for @first Z @last -> $first, $last { say "$last, $first"; }
Wall, Larry
Conway, Damian
Tang, Audrey
Schwartz, Randal

> for @first Z @last Z @nick { say "$^c = $^a $^b"; }  
TimToady = Larry Wall
conway = Damian Conway
audreyt = Audrey Tang
merlyn = Randal Schwartz