B3311331313231311331322331333132313132313331323223313231121133132322321   >>    B331133131323131133132233133313231313231333132322331323112113313232232   <<    B3311331313231311331322331333132313132313331323223313231121133132322323   >>      B3311331313231311331322331333132313132313331323223313231121133132322322   >>