B3311331313231311331322331333132322331312311331323132333132323221   >>    B331133131323131133132233133313232233131231133132313233313232322   <<    B3311331313231311331322331333132322331312311331323132333132323223   >>      B3311331313231311331322331333132322331312311331323132333132323222   >>