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use warnings;
use strict;
...
$ perl 11140961c.pl --first --second --year --first --second --second 
+--first
Unknown option: year
Invalid options passed to 11140961c.pl

use warnings;
use strict;
...
$ perl 11140961.pl --first --second --year --first --second --second -
+-first
Unknown option: year
Invalid options passed to 11140961.pl

use warnings;
use strict;
...
$ perl 11140961b.pl --first --second --year --first --second --second 
+--first
Unknown option: year
Invalid options passed to 11140961b.pl