use strict;
use warnings;


my @array1 = (
    ["first #1", "first #2"],
    ["second #1", "second #2"],
    ["third #1", "third #2"],
);

my $outer_idx = 0;
my $inner_idx = 0;

printf "One: %s; Two: %s\n", $array1[$outer_idx]->[0], $array1[$outer_idx]->[1];
$outer_idx++;
printf "One: %s; Two: %s\n", $array1[$outer_idx]->[0], $array1[$outer_idx]->[1];



##</code><code>##

One: first #1; Two: first #2
One: second #1; Two: second #2