B3311331313231311331322331333132313331322331323133313112211232322233232311   >>    B331133131323131133132233133313231333132233132313331311221123232223323231   <<    B3311331313231311331322331333132313331322331323133313112211232322233232313   >>      B3311331313231311331322331333132313331322331323133313112211232322233232312   >>