B3311331313231311331322331333132313331322331323133313331322132311112331   >>    B331133131323131133132233133313231333132233132313331333132213231111233   <<    B3311331313231311331322331333132313331322331323133313331322132311112333   >>      B3311331313231311331322331333132313331322331323133313331322132311112332   >>