B3311331313231311331322331333132313331322331323133313331323222211312131   >>    B331133131323131133132233133313231333132233132313331333132322221131213   <<    B3311331313231311331322331333132313331322331323133313331323222211312133   >>      B3311331313231311331322331333132313331322331323133313331323222211312132   >>