$ perl -E '
    my @many_strings = ("abc", "cd", "e", "fg", "hi", "hello world");
    $" = "";
    say length "@many_strings";
'
21

##</code><code>##

$ perl -E '
    my @many_strings = ("abc", "cd", "e", "fg", "hi", "hello world");
    {
        local $" = "";
        say length "@many_strings";
    }
'
21