B3311331313231311331322331333132313331323133313233313331311331333112233311   >>    B331133131323131133132233133313231333132313331323331333131133133311223331   <<    B3311331313231311331322331333132313331323133313233313331311331333112233313   >>      B3311331313231311331322331333132313331323133313233313331311331333112233312   >>