B3311331313231311331322331333132313331322331323133313331333131131212231   >>    B331133131323131133132233133313231333132233132313331333133313113121223   <<    B3311331313231311331322331333132313331322331323133313331333131131212233   >>      B3311331313231311331322331333132313331322331323133313331333131131212232   >>