a-a a-b a-i a-t aaa aab aaf aai aan aat aau aay ab- aba abb abf abi abn abt abu aby af- afa afb aff afi afn aft afu afy ai- aia aib aif aii ain ait aiu aiy an- ana anb anf ani ann ant anu any at- ata atb atf ati atn att atu au- aua aub auf aui aun aut ay- aya ayf ayi ayn ayt ayu b-u baa bab baf bai ban bat bau bay bba bbb bbf bbi bbn bbt bbu bby bfa bfb bff bfi bfn bft bfu bfy bi- bia bib bif bii bin bit biu biy bna bnb bnf bni bnn bnt bnu bta btb btf bti btn btt btu bty bua bub buf bui bun but buu buy by- bya byf byi byn byt byu faa fab faf fai fan fat fau fay fba fbb fbf fbi fbn fbt fbu ffa fff ffi ffn fft ffu ffy fia fib fif fii fin fit fiu fna fnb fnf fni fnn fnt fnu fta ftb ftf fti ftn ftt ftu fty fua fub fuf fui fun fut fuu fy- fya fyb fyi fyn i-f ia- iaa iab iaf iai ian iat iau iba ibb ibf ibi ibn ibt ibu iby ifa ifb iff ifi ifn ift ifu ify iia iib iif iii iin iit iiu in- ina inb inf ini inn int inu iny ita itb itf iti itn itt itu ity iu- iua iub iui iut iya iyt iyy n-i naa nab naf nai nan nat nau nay nba nbb nbf nbi nbn nbt nbu nfa nfb nff nfi nfn nft nfu nia nib nif nii nin nit niu nna nnb nnf nni nnn nnt nnu nta ntb ntf nti ntn ntt ntu nua nub nui nun nut nuu nuy nya nyf nyn nyt nyu nyy taa tab taf tai tan tat tau tay tba tbb tbf tbi tbn tbt tbu tfa tfb tff tfi tfn tft tfu tia tib tif tii tin tit tiu tiy tna tnb tnf tni tnn tnt tta ttb ttf tti ttn ttt ttu tty tua tub tuf tui tun tut tuu tuy tya tyf tyn tyt ua- uaa uab uaf uai uan uat uau uay uba ubb ubf ubi ubn ubt ubu uby ufa uff ufi ufn uft ufu uia uib uif uii uin uit uiu un- una unb unf uni unn unt unu uny uta utb utf uti utn utt utu uty uua uun uut uuu uyi uyu yaa yab yaf yai yan yat yau yay ybf ybi yby yfa yff yft yfu yif yii yin yit yna ynn ynu yny yta ytf ytn ytt ytu yua yui yun yut yuu yuy yyb yyf yyt yyu yyy