a-a a-b a-i a-t aaa aab aag aai aan aao aar aat aau aax ab- aba abb abg abi abn abo abr abt abu abx ag- aga agb agg agi agn ago agr agt agu agx ai- aia aib aig aii ain aio air ait aiu aix an- ana anb ang ani ann ano anr ant anu anx aoa aob aog aoi aon aoo aor aot aou aox ar- ara arb arg ari arn aro arr art aru arx at- ata atb atg ati atn ato atr att atu atx au- aua aub aug aui aun auo aur aut aux ax- axa axi axn axo axr axt axx b-u baa bab bag bai ban bao bar bat bau bax bba bbb bbg bbi bbn bbo bbr bbt bbu bbx bga bgb bgg bgi bgn bgo bgr bgt bgu bgx bi- bia bib big bii bin bio bir bit biu bix bna bnb bng bni bnn bno bnr bnt bnu bnx boa bob bog boi bon boo bor bot bou box bra brb brg bri brn bro brr brt bru brx bta btb btg bti btn bto btr btt btu btx bua bub bug bui bun buo bur but buu bux bxb bxi bxn bxo bxx gaa gab gag gai gan gao gar gat gau gba gbg gbi gbn gbo gbr gbt gbu gbx gga ggb ggg ggi ggn ggo ggr ggt ggu gia gib gig gii gin gio gir git giu gna gnb gni gnn gno gnr gnt gnu goa gob gog goi gon goo gor got gou gox gra grb grg gri grn gro grr grt gru grx gta gtb gtg gti gtn gto gtr gtt gtu gtx gu- gua gub gug gui gun guo gur gut guu gxa gxt ia- iaa iab iag iai ian iao iar iat iau iba ibb ibg ibi ibn ibo ibr ibt ibu ibx iga igb igg igi ign igo igr igt igu iia iib iii iin iio iir iit iiu iix in- ina inb ing ini inn ino inr int inu inx io- ioa iob iog ioi ion ioo ior iot iou ir- ira irb irg iri irn iro irr irt iru irx ita itb itg iti itn ito itt itu itx iu- iua iub iug iui iur iut ixi ixn n-i naa nab nag nai nan nao nar nat nau nax nba nbb nbg nbi nbn nbo nbr nbt nbu nbx nga ngb ngg ngi ngn ngo ngt ngu nia nib nig nii nin nio nir nit niu nix nna nnb nng nni nnn nno nnt nnu no- noa nob nog noi non noo nor not nou nox nra nrb nrg nri nrn nro nrr nrt nru nrx nta ntb ntg nti ntn nto ntr ntt ntu ntx nua nub nug nui nun nuo nur nut nuu nux nxt o-i oaa oab oag oai oan oao oar oat oau oax ob- oba obb obg obi obn obo obr obt obu obx oga ogg ogi ogn ogo ogt ogx oia oib oii oin oio oir oit oiu on- ona onb ong oni onn ono onr ont onu onx oo- ooa oob oog ooi oon ooo oor oot oox or- ora orb org ori orn oro orr ort oru orx ot- ota otb otg oti otn oto otr ott otu ou- oua oui oun ouo our out ox- oxa oxb oxi oxn oxo oxt oxx ra- raa rab rag rai ran rao rar rat rau rax rba rbb rbg rbi rbn rbo rbr rbt rbu rbx rga rgb rgg rgi rgn rgo rgr rgt rgx ria rib rig rii rin rio rir rit rix rna rnb rng rni rnn rno rnr rnt rnu roa rob rog roi ron roo ror rot rou rox rra rrb rrg rri rrn rrr rrt rru rta rtb rtg rti rtn rto rtr rtt rtu rtx rua rub rug rui run ruo rur rut ruu rux rxr t-x taa tab tag tai tan tao tar tat tau tax tba tbb tbg tbi tbn tbo tbr tbt tbu tga tgb tgg tgi tgn tgo tgr tgt tgu tia tib tig tii tin tio tir tit tiu tix tna tnb tng tni tnn tno tnr tnt tnx to- toa tob tog toi ton too tor tot tou tox tra trb trg tri trn tro trr trt tru trx tta ttb ttg tti ttn tto ttr ttt ttu ttx tua tub tug tui tun tuo tur tut tuu tux txi txn txt txu ua- uaa uab uag uai uan uao uar uat uau uba ubb ubg ubi ubn ubo ubr ubt ubu ubx uga ugb ugg ugi ugn ugo ugr ugt ugu ugx uia uib uig uii uin uio uir uit uiu un- una unb ung uni unn uno unr unt unu unx uoa uob uog uon uoo uor uot uox ur- ura urb urg uri urn uro urr urt uru urx uta utb uti utn uto utr utt utu utx uua uug uun uur uut uuu uxb uxo uxr uxt uxu xaa xag xan xar xat xau xbr xbx xgi xia xii xin xio xit xiu xix xna xno xnu xoa xog xoi xon xoo xor xot xox xrt xrx xti xtr xtx xui xun xxi xxo xxx