B3311331313231311331322331333132313231333133313311211113313223321121   >>    B331133131323131133132233133313231323133313331331121111331322332112   <<    B3311331313231311331322331333132313231333133313311211113313223321123   >>      B3311331313231311331322331333132313231333133313311211113313223321122   >>