B3311331313231311331322331333132313331322331323133313311211111212111133222211   >>    B331133131323131133132233133313231333132233132313331331121111121211113322221   <<    B3311331313231311331322331333132313331322331323133313311211111212111133222213   >>      B3311331313231311331322331333132313331322331323133313311211111212111133222212   >>