a-a a-c a-t aaa aac aad aaf aan aao aar aat aau ac- aca acc acd acf acn aco acr act acu ad- ada adc add adf adn ado adr adt adu af- afa afc afd aff afn afo afr aft afu an- ana anc and anf ann ano anr ant anu aoa aoc aod aof aon aoo aor aot aou ar- ara arc ard arf arn aro arr art aru at- ata atc atd atf atn ato atr att atu au- aua auc aud auf aun auo aur aut c-- caa cac cad caf can cao car cat cau cca ccc ccd ccf ccn cco ccr cct ccu cda cdc cdd cdf cdn cdo cdr cdt cdu cfa cfc cfd cff cfn cfo cfr cft cfu cn- cna cnc cnd cnf cnn cno cnr cnt cnu co- coa coc cod cof con coo cor cot cou cra crc crd crf crn cro crr crt cru cta ctc ctd ctf ctn cto ctr ctt ctu cua cuc cud cuf cun cuo cur cut cuu daa dac dad daf dan dao dar dat dau dca dcc dcd dcf dcn dco dcr dct dcu dda ddc ddd ddf ddn ddo ddr ddt ddu dfa dfc dfd dff dfn dfo dfr dft dfu dna dnc dnd dnf dnn dno dnr dnt doa doc dod dof don doo dor dot dou dra drc drd drn dro drr drt dru dta dtc dtd dtf dtn dto dtr dtt dtu dua duc dud duf dun duo dur dut faa fac fad faf fan fao far fat fau fca fcc fcd fcf fcn fco fcr fct fcu fda fdc fdd fdf fdn fdo fdr fdt fdu ffa ffc ffd fff ffn ffo ffr fft ffu fna fnc fnd fnf fnn fnr fnt fnu foa foc fof fon foo for fot fou fra frc frd frf frn fro frr frt fru fta ftc ftd ftf ftn fto ftr ftt ftu fua fud fuf fun fuo fur fut fuu naa nac nad naf nan nao nar nat nau nca ncc ncd ncf ncn nco ncr nct ncu nda ndc ndd ndf ndn ndo ndr ndt ndu nfa nfc nfd nff nfn nfo nfr nft nfu nna nnc nnf nnn nno nnt nnu no- noa noc nod nof non noo nor not nou nra nrc nrd nrf nrn nro nrr nrt nru nta ntc ntd ntf ntn nto ntr ntt ntu nua nuc nud nun nuo nur nut nuu oaa oac oad oaf oan oao oar oat oau oc- oca occ ocd ocf ocn oco ocr oct ocu oda odc odd odf odn odo odr odt odu of- ofa ofc ofd off ofn ofo ofr oft ofu on- ona onc ond onf onn ono onr ont onu oo- ooa ooc ood oof oon ooo oor oot or- ora orc ord orf orn oro orr ort oru ot- ota otc otd otf otn oto otr ott otu ou- oua ouc oud ouf oun ouo our out ra- raa rac rad raf ran rao rar rat rau rca rcc rcd rcf rcn rco rcr rct rcu rda rdc rdd rdf rdn rdo rdr rdt rdu rfa rfc rfd rff rfn rfo rfr rft rfu rna rnc rnd rnn rno rnr rnt rnu roa roc rod rof ron roo ror rot rou rra rrc rrd rrf rrn rrr rrt rru rta rtc rtd rtf rtn rto rtr rtt rtu rua ruc rud ruf run ruo rur rut ruu taa tac tad taf tan tao tar tat tau tca tcc tcd tcf tcn tco tcr tct tcu tda tdc tdd tdf tdn tdo tdr tdt tdu tfa tfc tfd tff tfn tfo tfr tft tfu tna tnc tnd tnf tnn tno tnr tnt to- toa toc tod tof ton too tor tot tou tra trc trd trf trn tro trr trt tru tta ttc ttd ttf ttn tto ttr ttt ttu tua tuc tud tuf tun tuo tur tut tuu ua- uaa uac uad uaf uan uao uar uat uau uca ucc ucd ucf ucn uco ucr uct ucu uda udc udd udf udn udo udr udt udu ufa ufc ufd uff ufn ufo ufr uft ufu un- una unc und unf unn uno unr unt unu uoa uoc uod uon uoo uor uot ur- ura urc urd urf urn uro urr urt uru uta utc utd utf utn uto utr utt utu uua uuc uun uur uut uuu