B3311331313231311331322331333132313331323133313233313133313221311331   >>    B331133131323131133132233133313231333132313331323331313331322131133   <<    B3311331313231311331322331333132313331323133313233313133313221311333   >>      B3311331313231311331322331333132313331323133313233313133313221311332   >>