my $bla = 'a string' . 'another string' . 'yet another' . 'too much for one line';

##</code><code>##

my $bla = 'a string'
    . 'another string'
    . 'yet another'
    . 'too much for one line';

##</code><code>##

my $bla 
    = 'a string'
    . 'another string'
    . 'yet another'
    . 'too much for one line';