for my $row (@{$table}) {
    for my $column (@{$row}) {
        print "$column\n";
    }
}

##</code><code>##

for my $row (@table2) {
    for my $column (@{$row}) {
        print "@{$column}\n";
        for my $element (@{$column}) {
            print "$element\n";
        }
    }
}

##</code><code>##

push (@{$table2[0][1]}, 13);
print "@{$table2[0][1]}\n"; # prints 10 11 12 13