-th a-a a-b a-c a-t aaa aab aac aah aam aan aao aar aat ab- aba abb abc abh abm abn abo abr abt ac- aca acb acc ach acm acn aco acr act aha ahb ahc ahh ahm ahn aho ahr aht ama amb amc amh amm amn amo amr amt an- ana anb anc anh anm ann ano anr ant aoa aob aoc aoh aom aon aoo aor aot ar- ara arb arc arh arm arn aro arr art at- ata atb atc ath atm atn ato atr att baa bab bac bah bam ban bao bar bat bba bbb bbc bbh bbm bbn bbo bbr bbt bca bcb bcc bch bcm bcn bco bcr bct bha bhb bhc bhh bhm bho bhr bht bma bmb bmc bmh bmm bmn bmo bmr bmt bna bnb bnc bnn bno bnr bnt boa bob boc boh bom bon boo bor bot bra brb brh brm brn bro brr brt bta btb btc bth btm btn bto btr btt c-- caa cab cac cah cam can cao car cat cba cbb cbc cbh cbm cbn cbo cbr cbt cca ccb ccc cch ccm ccn cco ccr cct ch- cha chb chc chh chm chn cho chr cht cma cmb cmc cmh cmm cmn cmo cmr cmt cn- cna cnb cnc cnh cnm cnn cno cnr cnt co- coa cob coc coh com con coo cor cot cra crb crc crh crm crn cro crr crt cta ctb ctc cth ctm ctn cto ctr ctt haa hab hac hah ham han hao har hat hba hbb hbc hbh hbm hbn hbo hbr hbt hca hcb hcc hch hcm hcn hco hcr hct hha hhb hhc hhh hhm hhn hho hhr hht hma hmb hmc hmh hmm hmo hmr hmt hna hnb hnc hnh hnn hno hnt hoa hob hoc hoh hom hon hoo hor hot hr- hra hrb hrc hrh hrm hrn hro hrr hrt hta htb htc hth htm htn hto htr htt m-o m-r maa mab mac mah mam man mao mar mat mba mbb mbc mbh mbm mbo mbr mbt mc- mca mcb mcc mch mcm mcn mco mcr mct mha mhc mhh mhm mhn mho mhr mht mma mmb mmc mmh mmm mmn mmo mmr mmt mna mnb mnc mnm mnn mno mnr mnt moa mob moc moh mom mon moo mor mot mra mrb mrc mrh mrm mrn mro mrr mrt mta mtb mtc mth mtm mtn mto mtr mtt naa nab nac nah nam nan nao nar nat nba nbb nbc nbm nbn nbo nbr nbt nca ncb ncc nch ncm ncn nco ncr nct nha nhb nhc nhh nhm nhn nhr nht nma nmb nmc nmh nmm nmn nmo nmr nmt nna nnb nnc nnh nnm nnn nno nnt no- noa nob noc noh nom non noo nor not nra nrb nrc nrm nrn nro nrr nrt nta ntb ntc nth ntm ntn nto ntr ntt oaa oab oac oah oam oan oao oar oat ob- oba obb obc obh obm obn obo obr obt oc- oca ocb occ och ocm ocn oco ocr oct oha ohc ohh ohm ohn oho ohr oht om- oma omb omc omh omm omn omo omr omt on- ona onb onc onh onn ono onr ont oo- ooa oob ooc ooh oom oon ooo oor oot or- ora orb orc orh orm orn oro orr ort ot- ota otb otc oth otm otn oto otr ott ra- raa rab rac rah ram ran rao rar rat rba rbb rbc rbh rbm rbn rbo rbr rbt rca rcb rcc rch rcm rcn rco rcr rct rh- rha rhb rhc rhh rhm rhn rho rhr rht rma rmb rmc rmh rmm rmn rmo rmr rmt rna rnb rnc rnh rnm rnn rno rnr rnt roa rob roc roh rom ron roo ror rot rra rrb rrc rrh rrm rrn rrr rrt rta rtb rtc rtm rtn rto rtr rtt taa tab tac tah tam tan tao tar tat tba tbb tbc tbh tbm tbn tbo tbr tbt tca tcb tcc tch tcm tcn tco tcr tct th- tha thb thc thh thm thn tho thr tht tma tmb tmc tmh tmm tmn tmo tmr tmt tna tnb tnc tnh tnm tnn tno tnr tnt to- toa tob toc toh tom ton too tor tot tra trb trc trh trm trn tro trr trt tta ttb ttc tth ttm ttn tto ttr ttt