B3311331313231311331322331333132313132313331323223313113313231323311221   >>    B331133131323131133132233133313231313231333132322331311331323132331122   <<    B3311331313231311331322331333132313132313331323223313113313231323311223   >>      B3311331313231311331322331333132313132313331323223313113313231323311222   >>