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  1. or download this
    my $name = 'Jean ValJean';
    my $number = 24601;
    ...
      undef $name;
    }
    
  2. or download this
    sub who_am_i {
      my $name = 'Jean ValJean';
    ...
    # these are different variables, but could
    # have chosen $name and $number again
    my ($prisoner_name, $prisoner_number) = who_am_i();