my $rv1 = f( $o->next );
my $rv2 = g( $o->next );
my $x = $rv1 + $rv2;

##</code><code>##

my $x = $i + ++$i;

##</code><code>##

$x = f( g() + h() ) * p( q() - r() );

##</code><code>##

$x = p( q() - r() ) * f( g() + h() );

##</code><code>##

my $temp1 = p( q() - r() );
my $temp2 = f( g() + h() );
$x = $temp1 * $temp2;

##</code><code>##

$temp1 = q() - r();
$temp2 = g() + h();
$x = f( $temp2 ) * p( $temp1 );