0&&<<''; # this PGP-signed message is also valid perl
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

# CHECKSUMS file written on Tue Oct  1 20:32:35 2013 GMT by CPAN::Checksums (v2.08)
$cksum = {
  'Math' => {
    'isdir' => 1
  }
};
__END__
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Version: GnuPG v2.0.14 (GNU/Linux)

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=CkDU
-----END PGP SIGNATURE-----