B3311331313231311331322331333132313231323331333131113331323223311211311   >>    B331133131323131133132233133313231323132333133313111333132322331121131   <<    B3311331313231311331322331333132313231323331333131113331323223311211313   >>      B3311331313231311331322331333132313231323331333131113331323223311211312   >>