sub DrawPattern3
{
  my ($PATTERN, $LENGTH, $MODE, $c) = GetPattern($_[0]);

  for (my $i = 0; $i < $LENGTH; $i++)
  {
    $c = ord(substr($PATTERN, $i, 1));
    eval(WHATEVER());
  }
}

sub WHATEVER
{
  return "if (\$c == 64) { \$MODE = print \"\\n\"; next; }"
      . " print chr(\$MODE = \$MODE & 1 ? 32 : 35) x \$c; ";
}