B3311331313231311331322331333132313331322331323133313331323133311211321111   >>    B331133131323131133132233133313231333132233132313331333132313331121132111   <<    B3311331313231311331322331333132313331322331323133313331323133311211321113   >>      B3311331313231311331322331333132313331322331323133313331323133311211321112   >>