Bunny ears aren’t a problem! The resulting knot is the same as a standard shoelace knot. If your shoes are coming untied a lot, you probably are tying granny instead of square. Make sure that if you cross one way on the base crossing (like left over right), you cross the other way for the bunny ears step (like right over left). All the info in the link applies to bunny ears.
It would only take 11 decimal digits though. Sadly, an uneven 36 in binary