-th a-a a-b a-c a-t aaa aab aac aah aan aao aap aar aas aat ab- aba abb abc abh abn abo abp abr abs abt ac- aca acb acc ach acn aco acp acr acs act aha ahb ahc ahh ahn aho ahp ahr ahs aht an- ana anb anc anh ann ano anp anr ans ant aoa aob aoc aoh aon aoo aop aor aos aot ap- apa apb apc aph apn apo app apr aps apt ar- ara arb arc arh arn aro arp arr ars art as- asa asb asc ash asn aso asp asr ass ast at- ata atb atc ath atn ato atp atr ats att b-p baa bab bac bah ban bao bap bar bas bat bba bbb bbc bbh bbn bbo bbp bbr bbs bbt bca bcb bcc bch bcn bco bcp bcr bcs bct bha bhb bhc bhh bho bhp bhr bhs bht bna bnb bnc bnn bno bnp bnr bns bnt boa bob boc boh bon boo bop bor bos bot bpa bpb bpc bph bpn bpo bpp bpr bps bpt bra brb brh brn bro brp brr brs brt bsa bsb bsc bsh bsn bso bsp bsr bss bst bta btb btc bth btn bto btp btr bts btt c-- caa cab cac cah can cao cap car cas cat cba cbb cbc cbh cbn cbo cbp cbr cbs cbt cca ccb ccc cch ccn cco ccp ccr ccs cct ch- cha chb chc chh chn cho chp chr chs cht cn- cna cnb cnc cnh cnn cno cnp cnr cns cnt co- coa cob coc coh con coo cop cor cos cot cpa cpb cpc cph cpn cpo cpp cpr cps cpt cra crb crc crh crn cro crp crr crs crt csa csb csc csh csn cso csp csr css cst cta ctb ctc cth ctn cto ctp ctr cts ctt haa hab hac hah han hao hap har has hat hba hbb hbc hbh hbn hbo hbp hbr hbs hbt hca hcb hcc hch hcn hco hcp hcr hcs hct hha hhb hhc hhh hhn hho hhp hhr hhs hht hna hnb hnc hnh hnn hno hns hnt hoa hob hoc hoh hon hoo hop hor hos hot hpa hpb hpc hph hpn hpo hpp hpr hps hpt hr- hra hrb hrc hrh hrn hro hrp hrr hrs hrt hsa hsb hsc hsh hsn hsp hsr hss hst hta htb htc hth htn hto htp htr hts htt naa nab nac nah nan nao nap nar nas nat nba nbb nbc nbn nbo nbp nbr nbs nbt nca ncb ncc nch ncn nco ncp ncr ncs nct nha nhb nhc nhh nhn nhp nhr nhs nht nna nnb nnc nnh nnn nno nnp nns nnt no- noa nob noc noh non noo nop nor nos not npa npb npc nph npn npo npp npr nps npt nra nrb nrc nrn nro nrp nrr nrs nrt nsa nsb nsc nsh nsn nso nsp nsr nss nst nta ntb ntc nth ntn nto ntp ntr nts ntt oaa oab oac oah oan oao oap oar oas oat ob- oba obb obc obh obn obo obp obr obs obt oc- oca ocb occ och ocn oco ocp ocr ocs oct oha ohc ohh ohn oho ohp ohr ohs oht on- ona onb onc onh onn ono onp onr ons ont oo- ooa oob ooc ooh oon ooo oop oor oos oot op- opa opb opc oph opn opo opp opr ops opt or- ora orb orc orh orn oro orp orr ors ort os- osa osb osc osh osn oso osp osr oss ost ot- ota otb otc oth otn oto otp otr ots ott p-p paa pab pac pah pan pao pap par pas pat pba pbb pbc pbn pbo pbp pbr pbs pbt pca pcb pcc pch pcn pco pcp pcr pcs pct pha phb phc phn pho php phr phs pht pn- pna pnb pnc pnh pnn pno pnp pnr pns pnt poa pob poc poh pon poo pop por pos pot ppa ppb ppc pph ppn ppo ppp ppr pps ppt pra prb prc prh prn pro prp prr prs prt ps- psa psb psc psh psn pso psp psr pss pst pt- pta ptb ptc pth ptn pto ptp ptr pts ptt ra- raa rab rac rah ran rao rap rar ras rat rba rbb rbc rbh rbn rbo rbp rbr rbs rbt rca rcb rcc rch rcn rco rcp rcr rcs rct rh- rha rhb rhc rhh rhn rho rhp rhr rhs rht rna rnb rnc rnh rnn rno rnp rnr rns rnt roa rob roc roh ron roo rop ror ros rot rpa rpb rpc rph rpn rpo rpp rpr rps rpt rra rrb rrc rrh rrn rrp rrr rrs rrt rsa rsb rsc rsh rsn rso rsp rsr rss rst rta rtb rtc rtn rto rtp rtr rts rtt saa sab sac sah san sao sap sar sas sat sba sbb sbc sbh sbn sbo sbp sbr sbs sbt sca scb scc sch scn sco scp scr scs sct sh- sha shb shc shh shn sho shp shr shs sht sna snb snc snn sno snp snr sns snt soa sob soc soh son soo sop sor sos sot spa spb spc sph spn spo spp spr sps spt sr- sra srb src srh srn sro srp srr srs srt ss- ssa ssb ssc ssh ssn sso ssp ssr sss sst sta stb stc sth stn sto stp str sts stt taa tab tac tah tan tao tap tar tas tat tba tbb tbc tbh tbn tbo tbp tbr tbs tbt tca tcb tcc tch tcn tco tcp tcr tcs tct th- tha thb thc thh thn tho thp thr ths tht tna tnb tnc tnh tnn tno tnp tnr tns tnt to- toa tob toc toh ton too top tor tos tot tpa tpb tpc tph tpn tpo tpp tpr tps tpt tra trb trc trh trn tro trp trr