a-a a-b a-i a-z aaa aab aag aai aan aar aau aaz ab- aba abb abg abi abn abr abu abz ag- aga agb agg agi agn agr agu agz ai- aia aib aig aii ain air aiu aiz an- ana anb ang ani ann anr anu anz ar- ara arb arg ari arn arr aru arz au- aua aub aug aui aun aur auz az- aza azb azg azi azn azu azz b-u baa bab bag bai ban bar bau baz bba bbb bbg bbi bbn bbr bbu bga bgb bgg bgi bgn bgr bgu bgz bi- bia bib big bii bin bir biu biz bna bnb bng bni bnn bnr bnu bnz bra brb brg bri brn brr bru brz bua bub bug bui bun bur buu buz bza bzn bzr bzu bzz gaa gab gag gai gan gar gau gaz gba gbg gbi gbn gbr gbu gbz gga ggb ggg ggi ggn ggr ggu ggz gia gib gig gii gin gir giu giz gna gnb gni gnn gnr gnu gra grb grg gri grn grr gru gu- gua gub gug gui gun gur guu guz gza gzr gzu ia- iaa iab iag iai ian iar iau iaz iba ibb ibg ibi ibn ibr ibu ibz iga igb igg igi ign igr igu iia iib iii iin iir iiu in- ina inb ing ini inn inr inu ir- ira irb irg iri irn irr iru iu- iua iub iug iui iur iuz iza izi izu izz n-i naa nab nag nai nan nar nau naz nba nbb nbg nbi nbn nbr nbu nga ngb ngg ngi ngn ngu nia nib nig nii nin nir niu niz nna nnb nng nni nnn nnu nnz nra nrb nrg nri nrn nrr nru nrz nua nub nug nui nun nur nuu nzb nzg nzi nzz ra- raa rab rag rai ran rar rau raz rba rbb rbg rbi rbn rbr rbu rga rgb rgg rgi rgn rgr ria rib rig rii rin rir riz rna rnb rng rni rnn rnr rnu rnz rra rrb rrg rri rrn rrr rru rua rub rug rui run rur ruu ruz rza rzb ua- uaa uab uag uai uan uar uau uaz uba ubb ubg ubi ubn ubr ubu uga ugb ugg ugi ugn ugr ugu uia uib uig uii uin uir uiu un- una unb ung uni unn unr unu ur- ura urb urg uri urn urr uru urz uua uug uun uur uuu uza uzb uzi uzu z-g zaa zab zag zai zan zar zaz zbb zbr zgb zgg zgi zia zib zig zin zir ziz znn zub zug zui zun zur zuz zzr zzz