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12345678 use Perlmazing;our @ISA = qw(Perlmazing::Listable);sub main { $_[0] = '' unless defined $_[0];}1;
use
Perlmazing;
our
@ISA
=
qw(Perlmazing::Listable)
;
sub
main {
$_
[0] =
''
unless
defined
[0];
}
1;