a-a a-b a-i a-t aaa aab aaf aag aai aam aan aao aat ab- aba abb abf abg abi abm abn abo abt af- afa afb aff afg afi afm afn afo aft ag- aga agb agf agg agi agm agn ago agt ai- aia aib aif aig aii aim ain aio ait ama amb amf amg ami amm amn amo amt an- ana anb anf ang ani anm ann ano ant aoa aob aof aog aoi aom aon aoo aot at- ata atb atf atg ati atm atn ato att baa bab baf bag bai bam ban bao bat bba bbb bbf bbg bbi bbm bbn bbo bbt bfa bfb bff bfg bfi bfm bfn bfo bft bga bgb bgf bgg bgi bgm bgn bgo bgt bi- bia bib bif big bii bim bin bio bit bma bmb bmf bmg bmi bmm bmn bmo bmt bna bnb bnf bng bni bnn bno bnt boa bob bof bog boi bom bon boo bot bta btb btf btg bti btm btn bto btt faa fab faf fag fai fam fan fao fat fba fbb fbf fbg fbi fbm fbn fbo fbt ffa fff ffg ffi ffm ffn ffo fft fga fgb fgf fgg fgi fgm fgn fgt fia fib fif fig fii fim fin fit fma fmb fmf fmg fmi fmm fmn fmo fmt fna fnb fnf fng fni fnm fnn fnt foa fob fof fog foi fom fon foo fot fta ftb ftf ftg fti ftm ftn fto ftt gaa gab gaf gag gai gam gan gao gat gba gbf gbg gbi gbm gbn gbo gbt gfa gfb gff gfi gfm gfo gft gga ggb ggg ggi ggm ggn ggo ggt gia gib gif gig gii gim gin gio git gma gmb gmf gmg gmi gmm gmn gmo gmt gna gnb gnf gni gnm gnn gno gnt goa gob gof gog goi gom gon goo got gta gtb gtf gtg gti gtm gtn gto gtt i-f ia- iaa iab iaf iag iai iam ian iao iat iba ibb ibf ibg ibi ibm ibn ibo ibt ifa ifb iff ifg ifi ifm ifn ifo ift iga igb igf igg igi igm ign igo igt iia iib iif iii iim iin iio iit im- ima imb imf img imi imm imn imo imt in- ina inb inf ing ini inm inn ino int io- ioa iob iof iog ioi iom ion ioo iot ita itb itf itg iti itm itn ito itt m-f m-o maa mab maf mag mai mam man mao mat mba mbb mbf mbg mbi mbm mbo mbt mfa mfb mff mfg mfi mfm mfn mfo mft mga mgb mgf mgi mgm mgn mgo mgt mi- mia mib mif mig mii mim min mio mit mma mmb mmf mmg mmi mmm mmn mmo mmt mna mnb mnf mng mni mnm mnn mno mnt moa mob mof mog moi mom mon moo mot mta mtb mtf mtg mti mtm mtn mto mtt n-i naa nab naf nag nai nam nan nao nat nba nbb nbf nbg nbi nbm nbn nbo nbt nfa nfb nff nfi nfn nfo nft nga ngb ngf ngg ngi ngm ngn ngo ngt nia nib nif nig nii nim nin nio nit nma nmb nmg nmi nmm nmn nmo nmt nna nnb nnf nng nni nnm nnn nno nnt no- noa nob nof nog noi nom non noo not nta ntb ntf ntg nti ntm ntn nto ntt o-i oaa oab oaf oag oai oam oan oao oat ob- oba obb obf obg obi obm obn obo obt of- ofa ofb off ofg ofi ofm ofn ofo oft oga ogf ogg ogi ogn ogo ogt oia oib oif oii oim oin oio oit om- oma omb omf omg omi omm omn omo omt on- ona onb onf ong oni onn ono ont oo- ooa oob oof oog ooi oom oon ooo oot ot- ota otb otf otg oti otm otn oto ott taa tab taf tag tai tam tan tao tat tba tbb tbf tbg tbi tbm tbn tbo tbt tfa tfb tff tfg tfi tfm tfn tfo tft tga tgb tgf tgg tgi tgm tgn tgo tgt tia tib tif tig tii tim tin tio tit tma tmb tmf tmg tmi tmm tmn tmo tmt tna tnb tnf tng tni tnm tnn tno tnt to- toa tob tof tog toi tom ton too tot tta ttb ttf ttg tti ttm ttn tto ttt