B3311331313231311331322331333132313331323133313233313133313232213331322312231   >>    B331133131323131133132233133313231333132313331323331313331323221333132231223   <<    B3311331313231311331322331333132313331323133313233313133313232213331322312233   >>      B3311331313231311331322331333132313331323133313233313133313232213331322312232   >>