a-a a-c aaa aac aaf aah aao aar aas ac- aca acc acf ach aco acr acs af- afa afc aff afh afo afr afs aha ahc ahf ahh aho ahr ahs aoa aoc aof aoh aoo aor aos ar- ara arc arf arh aro arr ars as- asa asc asf ash aso asr ass c-- caa cac caf cah cao car cas cca ccc ccf cch cco ccr ccs cfa cfc cff cfh cfo cfr cfs ch- cha chc chf chh cho chr chs co- coa coc cof coh coo cor cos cra crc crf crh cro crr crs csa csc csf csh cso csr css faa fac faf fah fao far fas fca fcc fcf fco fcr fcs ffa ffc fff ffh ffo ffr ffs fha fhc fhf fhh fho fhr fhs foa foc fof foh foo for fos fra frc frf frh fro frr frs fsa fsc fsf fsh fso fsr fss haa hac haf hah hao har has hca hcc hcf hch hco hcr hcs hfa hfc hff hfh hfo hfr hfs hha hhc hhf hhh hho hhr hhs hoa hoc hof hoh hoo hor hos hr- hra hrc hrf hrh hro hrr hrs hsa hsc hsf hsh hsr hss oaa oac oaf oah oao oar oas oc- oca occ ocf och oco ocr ocs of- ofa ofc off ofo ofr ofs oha ohc ohf ohh oho ohr ohs oo- ooa ooc oof ooh ooo oor oos or- ora orc orf orh oro orr ors os- osa osc osf osh oso osr oss ra- raa rac raf rah rao rar ras rca rcc rcf rch rco rcr rcs rfa rfc rff rfh rfo rfr rfs rh- rha rhc rhf rhh rho rhr rhs roa roc rof roh roo ror ros rra rrc rrf rrh rrr rrs rsa rsc rsf rsh rso rsr rss saa sac saf sah sao sar sas sca scc scf sch sco scr scs sfa sfc sff sfh sfo sfr sfs sh- sha shc shf shh sho shr shs soa soc sof soh soo sor sos sr- sra src srf srh sro srr srs ss- ssa ssc ssf ssh sso ssr sss

a-ha aaaa aaac aaaf aaah aaar aaas aaca aacc aacf aach aaco aacr aacs aafa aafc aaff aaha aahs aaoo aara aarc aaro aars aasa aasc aasf aass acaa acac acar acas acca accc accf acch acco accs acfc acfs acha achh acho achr achs acoa acoh acor acos acr- acra acrc acro acrr acrs acsa acsc acss afaa afao afar afca afcc afch afcs affa affc affo affs afhs afoa afoo afor afr- afra afrc afro afrs afsa afsc ahac ahah ahar ahas ahfa ahha ahhs ahoa ahor ahra ahrc ahrr ahrs ahsa ahso ahss aoah aoca aocs aora aors aoss arac araf arah arar aras arc- arca arch arco arcs arfa arfc arff arfs arh- arhs aroa aroo aror aros arr- arra arrc arrh arro arrr arrs ars- arsa arsc arso asaa asac asaf asah asao asar asas asc- asca ascc asch asco ascr asfa asha ashs asoc asof asor asos asra asrc asro asrs assa assc assh asso assr asss caaa caac caaf caah caas cac- caca cacc cach caco cacr cafa cafc caff cafs caha cahs caor caos cara carc carf caro carr cars casa casc cash caso casr cass ccaa ccac ccaf ccar ccas ccca cccc cccf cccs ccfa ccfc ccff ccha cchr cchs ccoc ccra ccrc ccrf ccrs ccsa ccsf ccss cfaa cfac cfao cfar cfca cfcf cfco cfcs cffr cfhs cfoa cfor cfos cfra cfsa chaa chac chaf chah chao char chas chca chch chcs chfa chfc chfr chfs chha chhs choc choh choo chor chos chra chrc chrf chro chrr chrs chsc chsh chsr coas coca coch coco cofc coff cofs coha coho cohs coof cooh coos cor- cora corc corf coro corr cors cosa cosc cosh coso coss crac craf crar cras crca crcc crcr crfc crfs crhs croc croh croo cror crsa crss csaa csac csao csar csas cscc cscf csch csco cscr cscs csfc csfr cshs csor csos csra csrc csrs cssa cssr faaa faac faah faas faca facc fach facs fafa fafc faff fafo faha fahr fahs fara farc faro farr fars fasa fasc fash faso fass fcar fcas fcca fccf fcch fchs fcra fcsc ffar ffcc ffff ffhs ffrr ffsa ffss fhas fhfs fhhs fhrs fhss foaf foar foca foch foco focs fofo fohr fohs foof foos for- fora foro forr fors fosa fosh foso foss frac fras frcc frfc frhs froh fros frsc frso fsas fscc fsfo fshs fsra fssa fssc fssf haaf haar haas haco hacs haff hafs haha haho hahs haor hara harc harf harh haro harr hars hasa hasc hash hass hcca hccc hcch hccs hcfa hcfc hchs hcsa hcsc hcso hcss hfcs hfhs hfrs hfss hhaa hhhh hhhs hhof hoac hoar hoas hoca hoch hocr hocs hoff hofs hoha hoho hoof hoor hoos hora horc horo horr hors hosa hosh hoss hrac hras hrfc hrhs hros hrrc hrso hsac hsas hscc hsfc hsfs hshs oafc oafo oafs oahs oara oars oasc oass ocac ocas occa occc ocfa ocha ochs ocos ocra ocro ocrr ocrs ocsa ofah ofas ofcr off- offa offc offh offo offr offs ofor ofra ohcc ohho ohhs ohoh ohos ohra ohso ohss ooaa oocr ooff oofs ooha ooho oohs oooh oooo ooos oora oosa orac orah orao orar oras orca orch orco orcs orff orfs orhs oro- orof oror oros orra orro orrs orsa orso osaf osar osas osca oscc osco osfa osha oshc osho oshs osoo osor osos osro ossa osso raaf raas rac- raca racc rach raco racs rafa rafc raff raha rahr rahs raoc raoh raos rara rarf raro rars rasa rasc rash raso rass rcac rcaf rcas rccc rccs rcfc rchs rcos rcsa rcsc rcss rffc rfhs rhfs rhhs rhoa rhoc rhoh rhos roaf roar roas roca rocc roch roco rocs rofc roff rofo roha rohr rohs roof roor roos rora rorc roro rosa rosc rosh