a-a a-b a-i aaa aab aaf aag aai aam aan aao aar aau ab- aba abb abf abg abi abm abn abo abr abu af- afa afb aff afg afi afm afn afo afr afu ag- aga agb agf agg agi agm agn ago agr agu ai- aia aib aif aig aii aim ain aio air aiu ama amb amf amg ami amm amn amo amr amu an- ana anb anf ang ani anm ann ano anr anu aoa aob aof aog aoi aom aon aoo aor aou ar- ara arb arf arg ari arm arn aro arr aru au- aua aub auf aug aui aum aun auo aur b-u baa bab baf bag bai bam ban bao bar bau bba bbb bbf bbg bbi bbm bbn bbo bbr bbu bfa bfb bff bfg bfi bfm bfn bfo bfr bfu bga bgb bgf bgg bgi bgm bgn bgo bgr bgu bi- bia bib bif big bii bim bin bio bir biu bma bmb bmf bmg bmi bmm bmn bmo bmr bmu bna bnb bnf bng bni bnn bno bnr bnu boa bob bof bog boi bom bon boo bor bou bra brb brf brg bri brm brn bro brr bru bua bub buf bug bui bum bun buo bur buu faa fab faf fag fai fam fan fao far fau fba fbb fbf fbg fbi fbm fbn fbo fbr fbu ffa fff ffg ffi ffm ffn ffo ffr ffu fga fgb fgf fgg fgi fgm fgn fgr fia fib fif fig fii fim fin fir fiu fma fmb fmf fmg fmi fmm fmn fmo fmr fmu fna fnb fnf fng fni fnm fnn fnr fnu foa fob fof fog foi fom fon foo for fou fra frb frf frg fri frm frn fro frr fru fua fub fuf fug fui fum fun fuo fur fuu gaa gab gaf gag gai gam gan gao gar gau gba gbf gbg gbi gbm gbn gbo gbr gbu gfa gfb gff gfi gfm gfo gfr gga ggb ggg ggi ggm ggn ggo ggr ggu gia gib gif gig gii gim gin gio gir giu gma gmb gmf gmg gmi gmm gmn gmo gmr gna gnb gnf gni gnm gnn gno gnr gnu goa gob gof gog goi gom gon goo gor gou gra grb grf grg gri grm grn gro grr gru gu- gua gub guf gug gui gum gun guo gur guu i-f ia- iaa iab iaf iag iai iam ian iao iar iau iba ibb ibf ibg ibi ibm ibn ibo ibr ibu ifa ifb iff ifg ifi ifm ifn ifo ifr ifu iga igb igf igg igi igm ign igo igr igu iia iib iif iii iim iin iio iir iiu im- ima imb imf img imi imm imn imo imu in- ina inb inf ing ini inm inn ino inr inu io- ioa iob iof iog ioi iom ion ioo ior iou ir- ira irb irf irg iri irm irn iro irr iru iu- iua iub iug iui ium iur m-f m-o m-r maa mab maf mag mai mam man mao mar mau mba mbb mbf mbg mbi mbm mbo mbr mbu mfa mfb mff mfg mfi mfm mfn mfo mfr mfu mga mgb mgf mgi mgm mgn mgo mgr mgu mi- mia mib mif mig mii mim min mio mir miu mma mmb mmf mmg mmi mmm mmn mmo mmr mmu mna mnb mnf mng mni mnm mnn mno mnr mnu moa mob mof mog moi mom mon moo mor mou mra mrb mrf mrg mri mrm mrn mro mrr mru mua mub muf mug mui mum mun mur muu n-i naa nab naf nag nai nam nan nao nar nau nba nbb nbf nbg nbi nbm nbn nbo nbr nbu nfa nfb nff nfi nfn nfo nfr nfu nga ngb ngf ngg ngi ngm ngn ngo ngu nia nib nif nig nii nim nin nio nir niu nma nmb nmg nmi nmm nmn nmo nmr nmu nna nnb nnf nng nni nnm nnn nno nnu no- noa nob nof nog noi nom non noo nor nou nra nrb nrf nrg nri nrm nrn nro nrr nru nua nub nug nui num nun nuo nur nuu o-i oaa oab oaf oag oai oam oan oao oar oau ob- oba obb obf obg obi obm obn obo obr obu of- ofa ofb off ofg ofi ofm ofn ofo ofr ofu oga ogf ogg ogi ogn ogo oia oib oif oii oim oin oio oir oiu om- oma omb omf omg omi omm omn omo omr omu on- ona onb onf ong oni onn ono onr onu oo- ooa oob oof oog ooi oom oon ooo oor or- ora orb orf org ori orm orn oro orr oru ou- oua ouf oui oum oun ouo our ra- raa rab raf rag rai ram ran rao rar rau rba rbb rbf rbg rbi rbm rbn rbo rbr rbu rfa rfb rff rfg rfi rfm rfn rfo rfr rfu rga rgb rgf rgg rgi rgn rgo rgr ria rib rif rig rii rim rin rio rir rma rmb rmf rmg rmi rmm rmn rmo rmr rna rnb rng rni rnm rnn rno rnr rnu roa rob rof rog roi rom ron roo ror rou rra rrb rrf rrg rri rrm rrn rrr rru rua rub ruf rug rui rum run ruo rur ruu ua- uaa uab uaf uag uai uam uan uao uar uau uba ubb ubf ubg ubi ubn ubo ubr ubu ufa uff ufg ufi ufm ufn ufo ufr ufu uga ugb ugf ugg ugi ugm ugn ugo ugr ugu uia uib uif uig uii uim uin uio uir uiu um- uma umb umf umg umi umm umn umo umr umu un- una unb unf ung uni unm unn uno unr unu uoa uob uog uom uon uoo uor ur- ura urb urf urg uri urm urn uro urr uru uua uug uum uun uur uuu