B3311331313231311331322331333131133133313231133133313331311331323132322233221   >>    B331133131323131133132233133313113313331323113313331333131133132313232223322   <<    B3311331313231311331322331333131133133313231133133313331311331323132322233223   >>      B3311331313231311331322331333131133133313231133133313331311331323132322233222   >>