##
use strict;
use warnings;
my @age = (20, 30);
my %home = (Kelvin => "Tokyo", Andrew => "New York");
my (@age_r, %home_r) = (@age, %home);
print "@age_r";
####
20 30 Kelvin Tokyo Andrew New York
####
...
my ($age_r, $home_r) = (\@age, \%home);
print "@$age_r";
####
20 30
####
return ($age, $home);