#!/usr/bin/perl
use warnings;
use strict;

my @aaa = qw (11 22 33);
my @bbb = qw (44 55 66);
my @ccc = qw (77 88 99);

my @masterarray = qw(aaa bbb ccc);

print "$_ contains\t". (join ", ", eval "\@$_") . "\n" for @masterarray;