Warning: may cause nausea. Posted purely for hack value. An indent of 2 spaces used to protect the right margin from harm. Don't try this at home.

for ( $var ) {
  $_ == 1 or do {
    $_ == 2 or do {
      $_ == 3 or do {
        $_ == 4 or do {
          $_ == 5 or do {
            $_ == 6 or do {
              $_ == 7 or do {
                $_ == 8 or do {
                  $_ == 9 or do {
                    $_ == 10 or do {
                      last;
                    };
                    print "a";
                  };
                  print "b";
                };
                print "c";
              };
              print "d";
            };
            print "e";
          };
          print "f";
        };
        print "g";
      };
      print "h";
    };
    print "i";
  };
  print "j";
}
[download]