B3311331313231311331322331333132313331323131323223313231322132323221   >>    B331133131323131133132233133313231333132313132322331323132213232322   <<    B3311331313231311331322331333132313331323131323223313231322132323223   >>      B3311331313231311331322331333132313331323131323223313231322132323222   >>