bbb bbd bbh bbn bbo bdb bdd bdh bdo bhb bhd bhh bho bnb bnd bnn bno bob bod boh bon boo dbb dbd dbh dbn dbo ddb ddd ddh ddn ddo dh- dhb dhd dhh dho dnb dnd dnh dnn dno dob dod doh don doo hbb hbd hbh hbn hbo hdb hdd hdh hdn hdo hhb hhd hhh hhn hho hnb hnd hnh hnn hno hob hod hoh hon hoo nbb nbd nbn nbo ndb ndd ndh ndn ndo nhb nhd nhh nhn nnb nnh nnn nno no- nob nod noh non noo ob- obb obd obh obn obo odb odd odh odn odo ohd ohh ohn oho on- onb ond onh onn ono oo- oob ood ooh oon ooo