B3311331313231311331322331333132313331322331323133313311211111333131122212131   >>    B331133131323131133132233133313231333132233132313331331121111133313112221213   <<    B3311331313231311331322331333132313331322331323133313311211111333131122212133   >>      B3311331313231311331322331333132313331322331323133313311211111333131122212132   >>