B3311331313231311331322331333132322331322112331323132322331333132322113121   >>    B331133131323131133132233133313232233132211233132313232233133313232211312   <<    B3311331313231311331322331333132322331322112331323132322331333132322113123   >>      B3311331313231311331322331333132322331322112331323132322331333132322113122   >>