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my $output = join '', $array[2], $array[4];

my $output = join( '', $array[2], $array[4] );

print( "$output\n" );

print( $output . "\n" );

print( join( '', $output, "\n" ) );

my $output2 = join( '', $output, "\n" );
print( $output2 );

my @array =
    (
...
my $output = join( '', $array[2], $array[4] );
my $output2 = join( '', $output, "\n" );
print( $output2 );