B3311331313231311331322331333131133133313232112311331333133313132313232321   >>    B331133131323131133132233133313113313331323211231133133313331313231323232   <<    B3311331313231311331322331333131133133313232112311331333133313132313232323   >>      B3311331313231311331322331333131133133313232112311331333133313132313232322   >>