a-a a-t aaa aaf aan aao aar aat aau af- afa aff afn afo afr aft afu an- ana anf ann ano anr ant anu aoa aof aon aoo aor aot aou ar- ara arf arn aro arr art aru at- ata atf atn ato atr att atu au- aua auf aun auo aur aut faa faf fan fao far fat fau ffa fff ffn ffo ffr fft ffu fna fnf fnn fnr fnt fnu foa fof fon foo for fot fou fra frf frn fro frr frt fru fta ftf ftn fto ftr ftt ftu fua fuf fun fuo fur fut fuu naa naf nan nao nar nat nau nfa nff nfn nfo nfr nft nfu nna nnf nnn nno nnt nnu no- noa nof non noo nor not nou nra nrf nrn nro nrr nrt nru nta ntf ntn nto ntr ntt ntu nua nun nuo nur nut nuu oaa oaf oan oao oar oat oau of- ofa off ofn ofo ofr oft ofu on- ona onf onn ono onr ont onu oo- ooa oof oon ooo oor oot or- ora orf orn oro orr ort oru ot- ota otf otn oto otr ott otu ou- oua ouf oun ouo our out ra- raa raf ran rao rar rat rau rfa rff rfn rfo rfr rft rfu rna rnn rno rnr rnt rnu roa rof ron roo ror rot rou rra rrf rrn rrr rrt rru rta rtf rtn rto rtr rtt rtu rua ruf run ruo rur rut ruu taa taf tan tao tar tat tau tfa tff tfn tfo tfr tft tfu tna tnf tnn tno tnr tnt to- toa tof ton too tor tot tou tra trf trn tro trr trt tru tta ttf ttn tto ttr ttt ttu tua tuf tun tuo tur tut tuu ua- uaa uaf uan uao uar uat uau ufa uff ufn ufo ufr uft ufu un- una unf unn uno unr unt unu uoa uon uoo uor uot ur- ura urf urn uro urr urt uru uta utf utn uto utr utt utu uua uun uur uut uuu