a-a a-b a-i a-t a-z aaa aab aag aai aan aar aat aau aaz ab- aba abb abg abi abn abr abt abu abz ag- aga agb agg agi agn agr agt agu agz ai- aia aib aig aii ain air ait aiu aiz an- ana anb ang ani ann anr ant anu anz ar- ara arb arg ari arn arr art aru arz at- ata atb atg ati atn atr att atu atz au- aua aub aug aui aun aur aut auz az- aza azb azg azi azn azt azu azz b-u baa bab bag bai ban bar bat bau baz bba bbb bbg bbi bbn bbr bbt bbu bga bgb bgg bgi bgn bgr bgt bgu bgz bi- bia bib big bii bin bir bit biu biz bna bnb bng bni bnn bnr bnt bnu bnz bra brb brg bri brn brr brt bru brz bta btb btg bti btn btr btt btu btz bua bub bug bui bun bur but buu buz bza bzn bzr bzu bzz gaa gab gag gai gan gar gat gau gaz gba gbg gbi gbn gbr gbt gbu gbz gga ggb ggg ggi ggn ggr ggt ggu ggz gia gib gig gii gin gir git giu giz gna gnb gni gnn gnr gnt gnu gra grb grg gri grn grr grt gru gta gtb gtg gti gtn gtr gtt gtu gu- gua gub gug gui gun gur gut guu guz gza gzr gzu ia- iaa iab iag iai ian iar iat iau iaz iba ibb ibg ibi ibn ibr ibt ibu ibz iga igb igg igi ign igr igt igu iia iib iii iin iir iit iiu in- ina inb ing ini inn inr int inu ir- ira irb irg iri irn irr irt iru ita itb itg iti itn itt itu itz iu- iua iub iug iui iur iut iuz iza izi izu izz n-i naa nab nag nai nan nar nat nau naz nba nbb nbg nbi nbn nbr nbt nbu nga ngb ngg ngi ngn ngt ngu nia nib nig nii nin nir nit niu niz nna nnb nng nni nnn nnt nnu nnz nra nrb nrg nri nrn nrr nrt nru nrz nta ntb ntg nti ntn ntr ntt ntu ntz nua nub nug nui nun nur nut nuu nzb nzg nzi nzz ra- raa rab rag rai ran rar rat rau raz rba rbb rbg rbi rbn rbr rbt rbu rga rgb rgg rgi rgn rgr rgt ria rib rig rii rin rir rit riz rna rnb rng rni rnn rnr rnt rnu rnz rra rrb rrg rri rrn rrr rrt rru rta rtb rtg rti rtn rtr rtt rtu rtz rua rub rug rui run rur rut ruu ruz rza rzb taa tab tag tai tan tar tat tau taz tba tbb tbg tbi tbn tbr tbt tbu tbz tga tgb tgg tgi tgn tgr tgt tgu tgz tia tib tig tii tin tir tit tiu tiz tna tnb tng tni tnn tnr tnt tnz tra trb trg tri trn trr trt tru trz tta ttb ttg tti ttn ttr ttt ttu tua tub tug tui tun tur tut tuu tuz tza tzu ua- uaa uab uag uai uan uar uat uau uaz uba ubb ubg ubi ubn ubr ubt ubu uga ugb ugg ugi ugn ugr ugt ugu uia uib uig uii uin uir uit uiu un- una unb ung uni unn unr unt unu ur- ura urb urg uri urn urr urt uru urz uta utb uti utn utr utt utu utz uua uug uun uur uut uuu uza uzb uzi uzu z-g zaa zab zag zai zan zar zat zaz zbb zbr zbt zgb zgg zgi zia zib zig zin zir zit ziz znn zta ztr zub zug zui zun zur zut zuz zzr zzt zzz