a-a a-b a-i a-z aaa aab aag aai aan aar aay aaz ab- aba abb abg abi abn abr aby abz ag- aga agb agg agi agn agr agy agz ai- aia aib aig aii ain air aiy aiz an- ana anb ang ani ann anr any anz ar- ara arb arg ari arn arr ary arz ay- aya ayi ayn ayr ayz az- aza azb azg azi azn azy azz baa bab bag bai ban bar bay baz bba bbb bbg bbi bbn bbr bby bga bgb bgg bgi bgn bgr bgz bi- bia bib big bii bin bir biy biz bna bnb bng bni bnn bnr bnz bra brb brg bri brn brr bry brz by- bya byg byi byn byr byz bza bzn bzr bzz gaa gab gag gai gan gar gay gaz gba gbg gbi gbn gbr gby gbz gga ggb ggg ggi ggn ggr ggz gia gib gig gii gin gir giy giz gna gnb gni gnn gnr gra grb grg gri grn grr gry gy- gya gyb gyn gyr gza gzr ia- iaa iab iag iai ian iar iaz iba ibb ibg ibi ibn ibr iby ibz iga igb igg igi ign igr igy iia iib iii iin iir in- ina inb ing ini inn inr iny ir- ira irb irg iri irn irr iry iya iyr iyy iza izi izy izz n-i naa nab nag nai nan nar nay naz nba nbb nbg nbi nbn nbr nga ngb ngg ngi ngn nia nib nig nii nin nir niz nna nnb nng nni nnn nnz nra nrb nrg nri nrn nrr nry nrz nya nyg nyn nyy nzb nzg nzi nzz ra- raa rab rag rai ran rar ray raz rba rbb rbg rbi rbn rbr rga rgb rgg rgi rgn rgr ria rib rig rii rin rir riy riz rna rnb rng rni rnn rnr rny rnz rra rrb rrg rri rrn rrr ry- rya ryg ryn ryr ryy ryz rza rzb rzy yaa yab yag yai yan yar yay yaz ybg ybi ybr yby ybz yga yig yii yin yir yiz yna yng ynn yny yra yrg yrn yyb yyg yyy yyz yzb yzr yzy z-g zaa zab zag zai zan zar zay zaz zbb zbr zby zgb zgg zgi zia zib zig zin zir ziz znn zzr zzy zzz