B3311331313231311331322331333132322331323231333133313331312312323131   >>    B331133131323131133132233133313232233132323133313331333131231232313   <<    B3311331313231311331322331333132322331323231333133313331312312323133   >>      B3311331313231311331322331333132322331323231333133313331312312323132   >>