eBGDAE1=90442345678910111213141516171819202122232425262728293031323334let ringlet ring3536373109710389557let ringlet ringlet ring3931092774062244131099710let ringlet ring429557433109277446224(7)let ringlet ringlet ring45310999710469557473109277let ringlet ringlet ring486224(7)49310999710509557let ring51310927752622453545556575859606162636465666768697071727374757677