-th a-a a-b a-c a-t aaa aab aac aah aao aap aar aas aat ab- aba abb abc abh abo abp abr abs abt ac- aca acb acc ach aco acp acr acs act aha ahb ahc ahh aho ahp ahr ahs aht aoa aob aoc aoh aoo aop aor aos aot ap- apa apb apc aph apo app apr aps apt ar- ara arb arc arh aro arp arr ars art as- asa asb asc ash aso asp asr ass ast at- ata atb atc ath ato atp atr ats att b-p baa bab bac bah bao bap bar bas bat bba bbb bbc bbh bbo bbp bbr bbs bbt bca bcb bcc bch bco bcp bcr bcs bct bha bhb bhc bhh bho bhp bhr bhs bht boa bob boc boh boo bop bor bos bot bpa bpb bpc bph bpo bpp bpr bps bpt bra brb brh bro brp brr brs brt bsa bsb bsc bsh bso bsp bsr bss bst bta btb btc bth bto btp btr bts btt c-- caa cab cac cah cao cap car cas cat cba cbb cbc cbh cbo cbp cbr cbs cbt cca ccb ccc cch cco ccp ccr ccs cct ch- cha chb chc chh cho chp chr chs cht co- coa cob coc coh coo cop cor cos cot cpa cpb cpc cph cpo cpp cpr cps cpt cra crb crc crh cro crp crr crs crt csa csb csc csh cso csp csr css cst cta ctb ctc cth cto ctp ctr cts ctt haa hab hac hah hao hap har has hat hba hbb hbc hbh hbo hbp hbr hbs hbt hca hcb hcc hch hco hcp hcr hcs hct hha hhb hhc hhh hho hhp hhr hhs hht hoa hob hoc hoh hoo hop hor hos hot hpa hpb hpc hph hpo hpp hpr hps hpt hr- hra hrb hrc hrh hro hrp hrr hrs hrt hsa hsb hsc hsh hsp hsr hss hst hta htb htc hth hto htp htr hts htt oaa oab oac oah oao oap oar oas oat ob- oba obb obc obh obo obp obr obs obt oc- oca ocb occ och oco ocp ocr ocs oct oha ohc ohh oho ohp ohr ohs oht oo- ooa oob ooc ooh ooo oop oor oos oot op- opa opb opc oph opo opp opr ops opt or- ora orb orc orh oro orp orr ors ort os- osa osb osc osh oso osp osr oss ost ot- ota otb otc oth oto otp otr ots ott p-p paa pab pac pah pao pap par pas pat pba pbb pbc pbo pbp pbr pbs pbt pca pcb pcc pch pco pcp pcr pcs pct pha phb phc pho php phr phs pht poa pob poc poh poo pop por pos pot ppa ppb ppc pph ppo ppp ppr pps ppt pra prb prc prh pro prp prr prs prt ps- psa psb psc psh pso psp psr pss pst pt- pta ptb ptc pth pto ptp ptr pts ptt ra- raa rab rac rah rao rap rar ras rat rba rbb rbc rbh rbo rbp rbr rbs rbt rca rcb rcc rch rco rcp rcr rcs rct rh- rha rhb rhc rhh rho rhp rhr rhs rht roa rob roc roh roo rop ror ros rot rpa rpb rpc rph rpo rpp rpr rps rpt rra rrb rrc rrh rrp rrr rrs rrt rsa rsb rsc rsh rso rsp rsr rss rst rta rtb rtc rto rtp rtr rts rtt saa sab sac sah sao sap sar sas sat sba sbb sbc sbh sbo sbp sbr sbs sbt sca scb scc sch sco scp scr scs sct sh- sha shb shc shh sho shp shr shs sht soa sob soc soh soo sop sor sos sot spa spb spc sph spo spp spr sps spt sr- sra srb src srh sro srp srr srs srt ss- ssa ssb ssc ssh sso ssp ssr sss sst sta stb stc sth sto stp str sts stt taa tab tac tah tao tap tar tas tat tba tbb tbc tbh tbo tbp tbr tbs tbt tca tcb tcc tch tco tcp tcr tcs tct th- tha thb thc thh tho thp thr ths tht to- toa tob toc toh too top tor tos tot tpa tpb tpc tph tpo tpp tpr tps tpt tra trb trc trh tro trp trr trs trt tsa tsb tsc tsh tso tsp tsr tss tst tta ttb ttc tth tto ttp ttr tts ttt

a-ha aaaa aaab aaac aaah aaap aaar aaas aaba aabb aabc aabh aabp aabt aaca aacb aacc aach aaco aacp aacr aacs aact aaha aahs aaoo aapa aapc aaph aapo aaps aapt aara aarc aaro aarp aars aart aasa aasc aass aast aata aatc aatt abaa abab abac abap abar abas abat abb- abba abbb abbo abbr abbs abbt abca abcb abcc abch abcp abcr abcs abct abha abho abhr abhs aboa abob aboh aboo abor abos abot abpa abpc abpp abpr abps abra abrc abro abrs abs- absa absp abss abta abts ac-t acaa acab acac acap acar acas acat acba acca accc acch acco accp accs acct acha achh acho achp achr achs acht acoa acoh acop acor acos acot acpa acpr acps acpt acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc acth acto acts actt ahab ahac ahah ahar ahas ahat ahha ahhs ahoa ahop ahor ahot ahra ahrc ahrr ahrs ahsa ahso ahss ahta ahto ahts aoah aoba aoca aocs aopo aora aorb aors aort aosp aoss aotc apac apah apao apap apar apas apat apba apbr apbs apca apcb apcc apco apcr apcs aph- apha aphc aphs apo- apoc apoo apop apor apos apot appa appc apph appr apps appt apra aprc apro aprs aprt apsa apso apss apta aptc apts aptt arab arac arah arap arar aras arat arba arbh arbs arc- arca arch arco arcs arct arh- arhs aroa arob aroo aror aros arpa