a-a a-b aaa aab aad aah aan aao aap aas ab- aba abb abd abh abn abo abp abs ad- ada adb add adh adn ado adp ads aha ahb ahd ahh ahn aho ahp ahs an- ana anb and anh ann ano anp ans aoa aob aod aoh aon aoo aop aos ap- apa apb apd aph apn apo app aps as- asa asb asd ash asn aso asp ass b-p baa bab bad bah ban bao bap bas bba bbb bbd bbh bbn bbo bbp bbs bda bdb bdd bdh bdo bdp bds bha bhb bhd bhh bho bhp bhs bna bnb bnd bnn bno bnp bns boa bob bod boh bon boo bop bos bpa bpb bpd bph bpn bpo bpp bps bsa bsb bsd bsh bsn bso bsp bss daa dab dad dah dan dao dap das dba dbb dbd dbh dbn dbo dbp dbs dda ddb ddd ddh ddn ddo ddp dds dh- dha dhb dhd dhh dho dhp dhs dna dnb dnd dnh dnn dno dnp dns doa dob dod doh don doo dop dos dpa dpb dpd dph dpn dpo dpp dps dsa dsb dsd dsh dsn dso dsp dss haa hab had hah han hao hap has hba hbb hbd hbh hbn hbo hbp hbs hda hdb hdd hdh hdn hdo hdp hds hha hhb hhd hhh hhn hho hhp hhs hna hnb hnd hnh hnn hno hns hoa hob hod hoh hon hoo hop hos hpa hpb hpd hph hpn hpo hpp hps hsa hsb hsd hsh hsn hsp hss naa nab nad nah nan nao nap nas nba nbb nbd nbn nbo nbp nbs nda ndb ndd ndh ndn ndo ndp nds nha nhb nhd nhh nhn nhp nhs nna nnb nnh nnn nno nnp nns no- noa nob nod noh non noo nop nos npa npb npd nph npn npo npp nps nsa nsb nsd nsh nsn nso nsp nss oaa oab oad oah oan oao oap oas ob- oba obb obd obh obn obo obp obs oda odb odd odh odn odo odp ods oha ohd ohh ohn oho ohp ohs on- ona onb ond onh onn ono onp ons oo- ooa oob ood ooh oon ooo oop oos op- opa opb opd oph opn opo opp ops os- osa osb osd osh osn oso osp oss p-p paa pab pad pah pan pao pap pas pba pbb pbd pbn pbo pbp pbs pda pdb pdd pdh pdn pdo pdp pds pha phb phd phn pho php phs pn- pna pnb pnd pnh pnn pno pnp pns poa pob pod poh pon poo pop pos ppa ppb ppd pph ppn ppo ppp pps ps- psa psb psd psh psn pso psp pss saa sab sad sah san sao sap sas sba sbb sbd sbh sbn sbo sbp sbs sda sdb sdd sdh sdn sdo sdp sds sh- sha shb shd shh shn sho shp shs sna snb snd snn sno snp sns soa sob sod soh son soo sop sos spa spb spd sph spn spo spp sps ss- ssa ssb ssd ssh ssn sso ssp sss