B3311331313231311331322331333131133132323131133132313331322331323132322123331   >>    B331133131323131133132233133313113313232313113313231333132233132313232212333   <<    B3311331313231311331322331333131133132323131133132313331322331323132322123333   >>      B3311331313231311331322331333131133132323131133132313331322331323132322123332   >>