pp2@nereida:~/src/perl/testing$ perl -MO=Deparse,-p precedence2.pl
use warnings;
use strict 'refs';
(my $n1 = 2);
(my $n2 = 4);
print(((("$n1 plus $n2 is " . $n1) + $n2) . "\n"));
precedence2.pl syntax OK