-th a-a a-b a-c a-t aaa aab aac aah aak aam aao aas aat ab- aba abb abc abh abk abm abo abs abt ac- aca acb acc ach ack acm aco acs act aha ahb ahc ahh ahk ahm aho ahs aht aka akb akc akh akk akm ako aks ama amb amc amh amk amm amo ams amt aoa aob aoc aoh aok aom aoo aos aot as- asa asb asc ash ask asm aso ass ast at- ata atb atc ath atm ato ats att baa bab bac bah bak bam bao bas bat bba bbb bbc bbh bbk bbm bbo bbs bbt bca bcb bcc bch bck bcm bco bcs bct bha bhb bhc bhh bhk bhm bho bhs bht bka bkb bkc bkk bkm bko bks bkt bma bmb bmc bmh bmk bmm bmo bms bmt boa bob boc boh bok bom boo bos bot bsa bsb bsc bsh bsk bsm bso bss bst bta btb btc bth btk btm bto bts btt c-- caa cab cac cah cak cam cao cas cat cba cbb cbc cbh cbk cbm cbo cbs cbt cca ccb ccc cch cck ccm cco ccs cct ch- cha chb chc chh chk chm cho chs cht cka ckb ckc ckh ckm cko cks ckt cma cmb cmc cmh cmk cmm cmo cms cmt co- coa cob coc coh cok com coo cos cot csa csb csc csh csk csm cso css cst cta ctb ctc cth ctk ctm cto cts ctt haa hab hac hah hak ham hao has hat hba hbb hbc hbh hbk hbm hbo hbs hbt hca hcb hcc hch hck hcm hco hcs hct hha hhb hhc hhh hhk hhm hho hhs hht hka hkb hkh hkk hkm hko hks hkt hma hmb hmc hmh hmk hmm hmo hms hmt hoa hob hoc hoh hok hom hoo hos hot hsa hsb hsc hsh hsk hsm hss hst hta htb htc hth htk htm hto hts htt k-t ka- kaa kab kac kah kak kam kao kas kat kba kbb kbc kbh kbk kbm kbo kbs kca kcb kcc kch kck kcm kcs kct kha khh khk khm kho khs kkb kkc kkh kkk kkm kks kkt kma kmb kmc kmh kmk kmm kmo kms kmt koa kob koc koh kok kom koo kos kot ksa ksb ksc ksh ksk ksm kso kss kst kta ktb ktc kth ktk ktm kto kts ktt m-o maa mab mac mah mak mam mao mas mat mba mbb mbc mbh mbk mbm mbo mbs mbt mc- mca mcb mcc mch mck mcm mco mcs mct mha mhc mhh mhk mhm mho mhs mht mka mkb mkc mkh mkk mkm mko mks mkt mma mmb mmc mmh mmk mmm mmo mms mmt moa mob moc moh mok mom moo mos mot msa msb msc msh msk msm mso mss mst mta mtb mtc mth mtk mtm mto mts mtt oaa oab oac oah oak oam oao oas oat ob- oba obb obc obh obk obm obo obs obt oc- oca ocb occ och ock ocm oco ocs oct oha ohc ohh ohm oho ohs oht oka okb okc okk oko oks om- oma omb omc omh omm omo oms omt oo- ooa oob ooc ooh ook oom ooo oos oot os- osa osb osc osh osk osm oso oss ost ot- ota otb otc oth otk otm oto ots ott saa sab sac sah sak sam sao sas sat sba sbb sbc sbh sbk sbm sbo sbs sbt sca scb scc sch sck scm sco scs sct sh- sha shb shc shh shk shm sho shs sht sk- ska skb skc skh skk skm sko sks skt sma smb smc smh smk smm smo sms smt soa sob soc soh sok som soo sos sot ss- ssa ssb ssc ssh ssk ssm sso sss sst sta stb stc sth stk stm sto sts stt taa tab tac tah tak tam tao tas tat tba tbb tbc tbh tbk tbm tbo tbs tbt tca tcb tcc tch tck tcm tco tcs tct th- tha thb thc thh thk thm tho ths tht tka tkb tkc tkk tkm tko tks tkt tma tmb tmc tmh tmk tmm tmo tms tmt to- toa tob toc toh tok tom too tos tot tsa tsb tsc tsh tsk tsm tso tss tst tta ttb ttc tth ttk ttm tto tts ttt