a-a a-b aaa aab aad aah aak aam aao aas ab- aba abb abd abh abk abm abo abs ad- ada adb add adh adk adm ado ads aha ahb ahd ahh ahk ahm aho ahs aka akb akd akh akk akm ako aks ama amb amd amh amk amm amo ams aoa aob aod aoh aok aom aoo aos as- asa asb asd ash ask asm aso ass baa bab bad bah bak bam bao bas bba bbb bbd bbh bbk bbm bbo bbs bda bdb bdd bdh bdk bdm bdo bds bha bhb bhd bhh bhk bhm bho bhs bka bkb bkk bkm bko bks bma bmb bmd bmh bmk bmm bmo bms boa bob bod boh bok bom boo bos bsa bsb bsd bsh bsk bsm bso bss daa dab dad dah dak dam dao das dba dbb dbd dbh dbk dbm dbo dbs dda ddb ddd ddh ddk ddm ddo dds dh- dha dhb dhd dhh dhk dhm dho dhs dka dkb dkk dkm dko dks dma dmb dmd dmh dmk dmm dmo dms doa dob dod doh dok dom doo dos dsa dsb dsd dsh dsk dsm dso dss haa hab had hah hak ham hao has hba hbb hbd hbh hbk hbm hbo hbs hda hdb hdd hdh hdk hdm hdo hds hha hhb hhd hhh hhk hhm hho hhs hka hkb hkd hkh hkk hkm hko hks hma hmb hmd hmh hmk hmm hmo hms hoa hob hod hoh hok hom hoo hos hsa hsb hsd hsh hsk hsm hss ka- kaa kab kad kah kak kam kao kas kba kbb kbd kbh kbk kbm kbo kbs kda kdb kdh kdk kdm kdo kds kha khh khk khm kho khs kkb kkh kkk kkm kks kma kmb kmd kmh kmk kmm kmo kms koa kob kod koh kok kom koo kos ksa ksb ksd ksh ksk ksm kso kss m-o maa mab mad mah mak mam mao mas mba mbb mbd mbh mbk mbm mbo mbs mda mdb mdd mdh mdk mdm mdo mds mha mhd mhh mhk mhm mho mhs mka mkb mkd mkh mkk mkm mko mks mma mmb mmd mmh mmk mmm mmo mms moa mob mod moh mok mom moo mos msa msb msd msh msk msm mso mss oaa oab oad oah oak oam oao oas ob- oba obb obd obh obk obm obo obs oda odb odd odh odm odo ods oha ohd ohh ohm oho ohs oka okb okd okk oko oks om- oma omb omd omh omm omo oms oo- ooa oob ood ooh ook oom ooo oos os- osa osb osd osh osk osm oso oss saa sab sad sah sak sam sao sas sba sbb sbd sbh sbk sbm sbo sbs sda sdb sdd sdh sdk sdm sdo sds sh- sha shb shd shh shk shm sho shs sk- ska skb skd skh skk skm sko sks sma smb smd smh smk smm smo sms soa sob sod soh sok som soo sos ss- ssa ssb ssd ssh ssk ssm sso sss