B3311331313231311331322331333131133132313133313232213231333132313232111121   >>    B331133131323131133132233133313113313231313331323221323133313231323211112   <<    B3311331313231311331322331333131133132313133313232213231333132313232111123   >>      B3311331313231311331322331333131133132313133313232213231333132313232111122   >>