50 my @words = @{+shift}; 72 foreach my $word (@words) { 95 foreach my $word (@words) { #### 50 my $words = shift; 72 foreach my $word (@$words) { 95 foreach my $word (@$words) { #### 118 substr((my $pat = $word), $i, 1) = '.'; #### 118 substr my $pat = $word, $i, 1, '.';