B3311331313231311331322331333132313331322331323133313112211232333132322232311   >>    B331133131323131133132233133313231333132233132313331311221123233313232223231   <<    B3311331313231311331322331333132313331322331323133313112211232333132322232313   >>      B3311331313231311331322331333132313331322331323133313112211232333132322232312   >>