a-a a-c a-t aaa aac aad aaf aan aao aar aas aat aau ac- aca acc acd acf acn aco acr acs act acu ad- ada adc add adf adn ado adr ads adt adu af- afa afc afd aff afn afo afr afs aft afu an- ana anc and anf ann ano anr ans ant anu aoa aoc aod aof aon aoo aor aos aot aou ar- ara arc ard arf arn aro arr ars art aru as- asa asc asd asf asn aso asr ass ast asu at- ata atc atd atf atn ato atr ats att atu au- aua auc aud auf aun auo aur aus aut c-- caa cac cad caf can cao car cas cat cau cca ccc ccd ccf ccn cco ccr ccs cct ccu cda cdc cdd cdf cdn cdo cdr cds cdt cdu cfa cfc cfd cff cfn cfo cfr cfs cft cfu cn- cna cnc cnd cnf cnn cno cnr cns cnt cnu co- coa coc cod cof con coo cor cos cot cou cra crc crd crf crn cro crr crs crt cru csa csc csd csf csn cso csr css cst csu cta ctc ctd ctf ctn cto ctr cts ctt ctu cua cuc cud cuf cun cuo cur cus cut cuu daa dac dad daf dan dao dar das dat dau dca dcc dcd dcf dcn dco dcr dcs dct dcu dda ddc ddd ddf ddn ddo ddr dds ddt ddu dfa dfc dfd dff dfn dfo dfr dfs dft dfu dna dnc dnd dnf dnn dno dnr dns dnt doa doc dod dof don doo dor dos dot dou dra drc drd drn dro drr drs drt dru dsa dsc dsd dsf dsn dso dsr dss dst dsu dta dtc dtd dtf dtn dto dtr dts dtt dtu dua duc dud duf dun duo dur dus dut faa fac fad faf fan fao far fas fat fau fca fcc fcd fcf fcn fco fcr fcs fct fcu fda fdc fdd fdf fdn fdo fdr fds fdt fdu ffa ffc ffd fff ffn ffo ffr ffs fft ffu fna fnc fnd fnf fnn fnr fns fnt fnu foa foc fof fon foo for fos fot fou fra frc frd frf frn fro frr frs frt fru fsa fsc fsd fsf fsn fso fsr fss fst fsu fta ftc ftd ftf ftn fto ftr fts ftt ftu fua fud fuf fun fuo fur fus fut fuu naa nac nad naf nan nao nar nas nat nau nca ncc ncd ncf ncn nco ncr ncs nct ncu nda ndc ndd ndf ndn ndo ndr nds ndt ndu nfa nfc nfd nff nfn nfo nfr nfs nft nfu nna nnc nnf nnn nno nns nnt nnu no- noa noc nod nof non noo nor nos not nou nra nrc nrd nrf nrn nro nrr nrs nrt nru nsa nsc nsd nsf nsn nso nsr nss nst nsu nta ntc ntd ntf ntn nto ntr nts ntt ntu nua nuc nud nun nuo nur nus nut nuu oaa oac oad oaf oan oao oar oas oat oau oc- oca occ ocd ocf ocn oco ocr ocs oct ocu oda odc odd odf odn odo odr ods odt odu of- ofa ofc ofd off ofn ofo ofr ofs oft ofu on- ona onc ond onf onn ono onr ons ont onu oo- ooa ooc ood oof oon ooo oor oos oot or- ora orc ord orf orn oro orr ors ort oru os- osa osc osd osf osn oso osr oss ost osu ot- ota otc otd otf otn oto otr ots ott otu ou- oua ouc oud ouf oun ouo our ous out ra- raa rac rad raf ran rao rar ras rat rau rca rcc rcd rcf rcn rco rcr rcs rct rcu rda rdc rdd rdf rdn rdo rdr rds rdt rdu rfa rfc rfd rff rfn rfo rfr rfs rft rfu rna rnc rnd rnn rno rnr rns rnt rnu roa roc rod rof ron roo ror ros rot rou rra rrc rrd rrf rrn rrr rrs rrt rru rsa rsc rsd rsf rsn rso rsr rss rst rsu rta rtc rtd rtf rtn rto rtr rts rtt rtu rua ruc rud ruf run ruo rur rus rut ruu saa sac sad saf san sao sar sas sat sau sca scc scd scf scn sco scr scs sct scu sda sdc sdd sdf sdn sdo sdr sds sdt sdu sfa sfc sfd sff sfn sfo sfr sfs sft sfu sna snc snd snf snn sno snr sns snt snu soa soc sod sof son soo sor sos sot sou sr- sra src srd srf srn sro srr srs srt ss- ssa ssc ssd ssf ssn sso ssr sss sst ssu sta stc std stf stn sto str sts stt stu sua suc sud suf sun suo sur sus sut suu taa tac tad taf tan tao tar tas tat tau tca tcc tcd tcf tcn tco tcr tcs tct tcu tda tdc tdd tdf tdn tdo tdr tds tdt tdu tfa tfc tfd tff tfn tfo tfr tfs tft tfu tna tnc tnd tnf tnn tno tnr tns tnt to- toa toc tod tof ton too tor tos tot tou tra trc trd trf trn tro trr trs trt tru tsa tsc tsd tsf tsn tso tsr tss tst tsu tta ttc ttd ttf ttn tto ttr tts ttt ttu tua tuc tud tuf tun tuo tur tus tut tuu ua- uaa uac uad uaf uan uao uar uas uat uau uca ucc ucd ucf ucn uco ucr ucs uct ucu uda udc udd udf udn udo udr uds udt udu ufa ufc ufd uff ufn ufo ufr ufs uft ufu un- una unc und unf unn uno unr uns unt unu uoa uoc uod uon uoo uor uos uot ur- ura urc urd urf urn uro urr urs urt uru usa usc usd usf usn uso usr uss ust usu uta utc utd utf utn uto utr uts