a-a a-c a-t aaa aac aaf aao aar aas aat ac- aca acc acf aco acr acs act af- afa afc aff afo afr afs aft aoa aoc aof aoo aor aos aot ar- ara arc arf aro arr ars art as- asa asc asf aso asr ass ast at- ata atc atf ato atr ats att c-- caa cac caf cao car cas cat cca ccc ccf cco ccr ccs cct cfa cfc cff cfo cfr cfs cft co- coa coc cof coo cor cos cot cra crc crf cro crr crs crt csa csc csf cso csr css cst cta ctc ctf cto ctr cts ctt faa fac faf fao far fas fat fca fcc fcf fco fcr fcs fct ffa ffc fff ffo ffr ffs fft foa foc fof foo for fos fot fra frc frf fro frr frs frt fsa fsc fsf fso fsr fss fst fta ftc ftf fto ftr fts ftt oaa oac oaf oao oar oas oat oc- oca occ ocf oco ocr ocs oct of- ofa ofc off ofo ofr ofs oft oo- ooa ooc oof ooo oor oos oot or- ora orc orf oro orr ors ort os- osa osc osf oso osr oss ost ot- ota otc otf oto otr ots ott ra- raa rac raf rao rar ras rat rca rcc rcf rco rcr rcs rct rfa rfc rff rfo rfr rfs rft roa roc rof roo ror ros rot rra rrc rrf rrr rrs rrt rsa rsc rsf rso rsr rss rst rta rtc rtf rto rtr rts rtt saa sac saf sao sar sas sat sca scc scf sco scr scs sct sfa sfc sff sfo sfr sfs sft soa soc sof soo sor sos sot sr- sra src srf sro srr srs srt ss- ssa ssc ssf sso ssr sss sst sta stc stf sto str sts stt taa tac taf tao tar tas tat tca tcc tcf tco tcr tcs tct tfa tfc tff tfo tfr tfs tft to- toa toc tof too tor tos tot tra trc trf tro trr trs trt tsa tsc tsf tso tsr tss tst tta ttc ttf tto ttr tts ttt

aaaa aaac aaaf aaar aaas aaca aacc aacf aaco aacr aacs aact aafa aafc aaff aaoo aara aarc aaro aars aart aasa aasc aasf aass aast aata aatc aatf aatt ac-t acaa acac acar acas acat acca accc accf acco accs acct acfc acfs acft acoa acor acos acot acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc actf acto acts actt afaa afao afar afat afca afcc afcs affa affc affo affs afft afoa afoo afor afr- afra afrc afro afrs afsa afsc afst afta aftc afts aoca aocs aora aors aort aoss aotc aotf arac araf arar aras arat arc- arca arco arcs arct arfa arfc arff arfs arft aroa aroo aror aros arr- arra arrc arro arrr arrs arrt ars- arsa arsc arso arst arta artc arto artr arts asaa asac asaf asao asar asas asat asc- asca ascc asco ascr asct asfa asoc asof asor asos asot asra asrc asro asrs assa assc asso assr asss asst asta astc asto astr asts at-t ataa atac atar atas atat atca atcc atcf atco atcr atcs atfc atfs atoc atof ator atos atot atra atrc atro atsc atst atta atto attr atts caaa caac caaf caas caat cac- caca cacc caco cacr cafa cafc caff cafs caor caos cara carc carf caro carr cars cart casa casc caso casr cass cast cat- cata catc catf cato cats catt ccaa ccac ccaf ccar ccas ccat ccca cccc cccf cccs ccfa ccfc ccff ccoc ccra ccrc ccrf ccrs ccrt ccsa ccsf ccss ccst cctc cctt cfaa cfac cfao cfar cfca cfcf cfco cfcs cffr cfoa cfor cfos cfra cfrt cfsa cfta cftc cftr coas coat coca coco coct cofc coff cofs coft coof coos coot cor- cora corc corf coro corr cors cort cosa cosc coso coss cost cota cotc coto cots cott crac craf crar cras crat crca crcc crcr crfc crfs croc croo cror crot crrt crsa crss crst crtc crtf crts csaa csac csao csar csas csat cscc cscf csco cscr cscs csfc csfr csor csos csot csra csrc csrs cssa cssr csta cstc csto cstr csts ctca ctcf ctfc ctfo ctfs ctor ctos ctot ctrc ctrs ctsa ctsc ctss ctta ctts faaa faac faas faca facc facs fact fafa fafc faff fafo fara farc faro farr fars fart fasa fasc faso fass fast fata fatc fatf fato fats fatt fcar fcas fcat fcca fccf fcot fcra fcsc fcst fcto ffar ffcc ffff ffrr ffsa ffss fftf foaf foar foca foco focs fofo foof foos foot for- fora foro forr fors fort fosa foso foss fost fota foto fots fott frac fras frat frcc frfc fros frot frsc frso frst frta fsas fscc fsfo fsra fssa fssc fssf fsta ft-c ftfc ftos ftrs ftsa ftsr oafc oafo oafs oara oars oasc oass oast oats ocac ocas ocat occa occc occt ocfa ocos ocra ocro ocrr ocrs ocsa oct- octa octo octs ofas ofcr off- offa offc offo offr offs ofor ofra ofst ofta ooaa oocr ooff oofs oooo ooos oora oort oosa oost oots orac orao orar oras orat orca orco orcs orff orfs oro- orof oror oros orot orra orro orrs orsa orso orta ortc orto orts osaf osar osas osat osca oscc osco osfa osoo osor osos osro ossa osso osta ostc ostr osts otac otar otas otfc oto- otof otoo otor otos otra otro otrs otsa otso otta otto otts raaf raas raat rac- raca racc raco racs ract rafa rafc raff raft raoc raos rara rarf raro rars rasa rasc raso rass rast rata ratf rato rats ratt rcac rcaf rcas rccc rccs rcfc rcos rcsa rcsc rcss rctc rcts rffc rftc roaf roar roas roat roca rocc roco rocs rofc roff rofo roof roor roos root rora rorc roro rort rosa rosc roso ross rost rota rotc