B3311331313231311331322331333132333131323132333133313331322311331   >>    B331133131323131133132233133313233313132313233313331333132231133   <<    B3311331313231311331322331333132333131323132333133313331322311333   >>      B3311331313231311331322331333132333131323132333133313331322311332   >>