B3311331313231311331322331333132313331322331323133313311211111333131223323221   >>    B331133131323131133132233133313231333132233132313331331121111133313122332322   <<    B3311331313231311331322331333132313331322331323133313311211111333131223323223   >>      B3311331313231311331322331333132313331322331323133313311211111333131223323222   >>