start
   def koch(s, n) {
      start
         if (n <= 0) {
            forward s;
         }
         else {
            start
               call koch(s/3, n-1);
               turn 0-60;
               call koch(s/3, n-1);
               turn 120;
               call koch(s/3, n-1);
               turn 0-60;
               call koch(s/3, n-1);
            end
         }
      end
   }
   def flocon(s, n) {
      start
         call koch(s n);
         turn 120;
         call koch(s n);
         turn 120;
         call koch(s n);
      end
   }
   turn 180;
   forward 375;
   turn 90;
   forward 200;
   turn 90;
   down;
   call flocon(750, 4);
end