a-a a-c a-t aaa aac aaf aao aap aar aas aat ac- aca acc acf aco acp acr acs act af- afa afc aff afo afp afr afs aft aoa aoc aof aoo aop aor aos aot ap- apa apc apf apo app apr aps apt ar- ara arc arf aro arp arr ars art as- asa asc asf aso asp asr ass ast at- ata atc atf ato atp atr ats att c-- caa cac caf cao cap car cas cat cca ccc ccf cco ccp ccr ccs cct cfa cfc cff cfo cfp cfr cfs cft co- coa coc cof coo cop cor cos cot cpa cpc cpf cpo cpp cpr cps cpt cra crc crf cro crp crr crs crt csa csc csf cso csp csr css cst cta ctc ctf cto ctp ctr cts ctt faa fac faf fao fap far fas fat fca fcc fcf fco fcp fcr fcs fct ffa ffc fff ffo ffp ffr ffs fft foa foc fof foo fop for fos fot fpa fpc fpo fpp fpr fps fpt fra frc frf fro frp frr frs frt fsa fsc fsf fso fsp fsr fss fst fta ftc ftf fto ftp ftr fts ftt oaa oac oaf oao oap oar oas oat oc- oca occ ocf oco ocp ocr ocs oct of- ofa ofc off ofo ofp ofr ofs oft oo- ooa ooc oof ooo oop oor oos oot op- opa opc opf opo opp opr ops opt or- ora orc orf oro orp orr ors ort os- osa osc osf oso osp osr oss ost ot- ota otc otf oto otp otr ots ott p-p paa pac paf pao pap par pas pat pca pcc pcf pco pcp pcr pcs pct pfa pfc pff pfo pfp pfr pfs pft poa poc pof poo pop por pos pot ppa ppc ppf ppo ppp ppr pps ppt pra prc prf pro prp prr prs prt ps- psa psc psf pso psp psr pss pst pt- pta ptc ptf pto ptp ptr pts ptt ra- raa rac raf rao rap rar ras rat rca rcc rcf rco rcp rcr rcs rct rfa rfc rff rfo rfp rfr rfs rft roa roc rof roo rop ror ros rot rpa rpc rpf rpo rpp rpr rps rpt rra rrc rrf rrp rrr rrs rrt rsa rsc rsf rso rsp rsr rss rst rta rtc rtf rto rtp rtr rts rtt saa sac saf sao sap sar sas sat sca scc scf sco scp scr scs sct sfa sfc sff sfo sfp sfr sfs sft soa soc sof soo sop sor sos sot spa spc spf spo spp spr sps spt sr- sra src srf sro srp srr srs srt ss- ssa ssc ssf sso ssp ssr sss sst sta stc stf sto stp str sts stt taa tac taf tao tap tar tas tat tca tcc tcf tco tcp tcr tcs tct tfa tfc tff tfo tfp tfr tfs tft to- toa toc tof too top tor tos tot tpa tpc tpf tpo tpp tpr tps tpt tra trc trf tro trp trr trs trt tsa tsc tsf tso tsp tsr tss tst tta ttc ttf tto ttp ttr tts ttt

aaaa aaac aaaf aaap aaar aaas aaca aacc aacf aaco aacp aacr aacs aact aafa aafc aaff aaoo aapa aapc aapo aaps aapt aara aarc aaro aarp aars aart aasa aasc aasf aass aast aata aatc aatf aatt ac-t acaa acac acap acar acas acat acca accc accf acco accp accs acct acfc acfs acft acoa acop acor acos acot acpa acpr acps acpt acr- acra acrc acro acrr acrs acsa acsc acss acst acta actc actf acto acts actt afaa afao afap afar afat afca afcc afcs affa affc affo affs afft afoa afoo afor afpa afpc afr- afra afrc afro afrs afsa afsc afsp afst afta aftc aftp afts aoca aocs aopo aora aors aort aosp aoss aotc aotf apac apao apap apar apas apat apca apcc apco apcr apcs apfa apfc apfo apft apo- apoc apof apoo apop apor apos apot appa appc appr apps appt apra aprc apro aprs aprt apsa apso apss apta aptc apts aptt arac araf arap arar aras arat arc- arca arco arcs arct arfa arfc arff arfs arft aroa aroo aror aros arpa arps arr- arra arrc arro arrr arrs arrt ars- arsa arsc arso arst arta artc arto artr arts asaa asac asaf asao asap asar asas asat asc- asca ascc asco ascp ascr asct asfa asoc asof asop asor asos asot aspa aspc aspo aspr asps aspt asra asrc asro asrs assa assc asso assp assr asss asst asta astc asto astp astr asts at-t ataa atac atap atar atas atat atca atcc atcf atco atcr atcs atfc atfs atoc atof atop ator atos atot atpr atra atrc atro atrp atsc atst atta atto attp attr atts caaa caac caaf caap caas caat cac- caca cacc caco cacr cafa cafc caff cafs caor caos capa capc capo capp caps capt cara carc carf caro carp carr cars cart casa casc caso casp casr cass cast cat- cata catc catf cato cats catt ccaa ccac ccaf ccap ccar ccas ccat ccca cccc cccf cccp cccs ccfa ccfc ccff ccoc ccpa ccpp ccpr ccps ccra ccrc ccrf ccrp ccrs ccrt ccsa ccsf ccsp ccss ccst cctc cctt cfaa cfac cfao cfar cfca cfcf cfco cfcs cffr cfoa cfor cfos cfpa cfpo cfpr cfps cfra cfrp cfrt cfsa cfta cftc cftr coas coat coca coco cocp coct cofc coff cofs coft coof coop coos coot copa copo copp copr cops copt cor- cora corc corf coro corp corr cors cort cosa cosc coso cosp coss cost cota cotc coto cots cott cpaa cpac cpaf cpap cpas cpca cpcs cpff cpft cpos cppa cpps cprs cprt cpsa cpsc cpso cpsr cptp cptr cpts crac craf crap crar cras crat crca crcc crcr crfc crfs croc croo crop cror crot crpc crps crrt crsa crsp crss crst crtc crtf