-th a-a a-b a-c a-t aaa aab aac aae aah aak aao aap aas aat ab- aba abb abc abe abh abk abo abp abs abt ac- aca acb acc ace ach ack aco acp acs act aea aeb aec aee aeh aek aeo aep aes aet aha ahb ahc ahe ahh ahk aho ahp ahs aht aka akb akc ake akh akk ako akp aks aoa aob aoc aoe aoh aok aoo aop aos aot ap- apa apb apc ape aph apk apo app aps apt as- asa asb asc ase ash ask aso asp ass ast at- ata atb atc ate ath ato atp ats att b-p baa bab bac bae bah bak bao bap bas bat bba bbb bbc bbe bbh bbk bbo bbp bbs bbt bca bcb bcc bce bch bck bco bcp bcs bct be- bea beb bec bee beh bek beo bep bes bet bha bhb bhc bhe bhh bhk bho bhp bhs bht bka bkb bkc bke bkk bko bkp bks bkt boa bob boc boe boh bok boo bop bos bot bpa bpb bpc bpe bph bpo bpp bps bpt bsa bsb bsc bse bsh bsk bso bsp bss bst bta btb btc bte bth btk bto btp bts btt c-- caa cab cac cae cah cak cao cap cas cat cba cbb cbc cbe cbh cbk cbo cbp cbs cbt cca ccb ccc cce cch cck cco ccp ccs cct ce- cea ceb cec cee ceh cek ceo cep ces cet ch- cha chb chc che chh chk cho chp chs cht cka ckb ckc ckh cko cks ckt co- coa cob coc coe coh cok coo cop cos cot cpa cpb cpc cpe cph cpk cpo cpp cps cpt csa csb csc cse csh csk cso csp css cst cta ctb ctc cte cth ctk cto ctp cts ctt eaa eab eac eae eah eak eao eap eas eat eba ebb ebc ebe ebh ebk ebo ebp ebs ebt ec- eca ecb ecc ece ech eck eco ecs ect eea eeb eec eee eek eeo eep ees eet eha ehb ehc ehe ehh eho ehp ehs eht eka ekb ekc eke ekh eko ekp eks ekt eo- eoa eob eoc eoe eoh eok eoo eop eos eot ep- epa epb epc epe eph epo epp eps ept es- esa esb esc ese esh esk eso esp ess est eta etb etc ete eth etk eto etp ets ett haa hab hac hae hah hak hao hap has hat hba hbb hbc hbe hbh hbk hbo hbp hbs hbt hca hcb hcc hce hch hck hco hcp hcs hct he- hea heb hec hee heh hek heo hep hes het hha hhb hhc hhe hhh hhk hho hhp hhs hht hka hkb hkh hkk hko hkp hks hkt hoa hob hoc hoe hoh hok hoo hop hos hot hpa hpb hpc hpe hph hpk hpo hpp hps hpt hsa hsb hsc hse hsh hsk hsp hss hst hta htb htc hte hth htk hto htp hts htt k-t ka- kaa kab kac kae kah kak kao kap kas kat kba kbb kbc kbe kbh kbk kbo kbp kbs kca kcb kcc kce kch kck kcp kcs kct ke- kea keb kec kee keh kek keo kep kes ket kha khe khh khk kho khs kkb kkc kke kkh kkk kkp kks kkt koa kob koc koe koh kok koo kop kos kot kpa kpc kpe kph kpk kpo kpp kps kpt ksa ksb ksc kse ksh ksk kso ksp kss kst kta ktb ktc kte kth ktk kto ktp kts ktt oaa oab oac oae oah oak oao oap oas oat ob- oba obb obc obe obh obk obo obp obs obt oc- oca ocb occ och ock oco ocp ocs oct oea oeb oec oee oeh oeo oep oes oet oha ohc ohe ohh oho ohp ohs oht oka okb okc oke okk oko okp oks oo- ooa oob ooc ooh ook ooo oop oos oot op- opa opb opc ope oph opk opo opp ops opt os- osa osb osc ose osh osk oso osp oss ost ot- ota otb otc ote oth otk oto otp ots ott p-p paa pab pac pae pah pak pao pap pas pat pba pbb pbc pbe pbk pbo pbp pbs pbt pca pcb pcc pce pch pck pco pcp pcs pct pea peb pec pee peh pek peo pep pes pet pha phb phc phe phk pho php phs pht pka pkb pkc pke pko pkp pks pkt poa pob poc poe poh pok poo pop pos pot ppa ppb ppc ppe pph ppk ppo ppp pps ppt ps- psa psb psc pse psh psk pso psp pss pst pt- pta ptb ptc pte pth ptk pto ptp pts ptt saa sab sac sae sah sak sao sap sas sat sba sbb sbc sbe sbh sbk sbo sbp sbs sbt sca scb scc sce sch sck sco scp scs sct se- sea seb sec see seh sek seo sep ses set sh- sha shb shc she shh shk sho shp shs sht sk- ska skb skc ske skh skk sko skp sks skt soa sob soc soe soh sok soo sop sos sot spa spb spc spe sph spk spo spp sps spt ss- ssa ssb ssc sse ssh ssk sso ssp sss sst sta stb stc ste sth stk sto stp sts stt taa tab tac tae tah tak tao tap tas tat tba tbb tbc tbe tbh tbk tbo tbp tbs tbt tca tcb tcc tce tch tck tco tcp tcs tct te- tea teb tec tee teh tek teo tep tes tet th- tha thb thc the thh thk tho thp ths tht tka tkb tkc tke tkk tko tkp tks tkt to- toa tob toc toe toh tok too top tos tot tpa tpb tpc tpe tph tpk tpo tpp tps tpt tsa tsb tsc tse tsh tsk tso tsp tss tst tta ttb ttc tte tth ttk