a-a a-b a-i a-t aaa aab aai aam aan aao aat ab- aba abb abi abm abn abo abt ai- aia aib aii aim ain aio ait ama amb ami amm amn amo amt an- ana anb ani anm ann ano ant aoa aob aoi aom aon aoo aot at- ata atb ati atm atn ato att baa bab bai bam ban bao bat bba bbb bbi bbm bbn bbo bbt bi- bia bib bii bim bin bio bit bma bmb bmi bmm bmn bmo bmt bna bnb bni bnn bno bnt boa bob boi bom bon boo bot bta btb bti btm btn bto btt ia- iaa iab iai iam ian iao iat iba ibb ibi ibm ibn ibo ibt iia iib iii iim iin iio iit im- ima imb imi imm imn imo imt in- ina inb ini inm inn ino int io- ioa iob ioi iom ion ioo iot ita itb iti itm itn ito itt m-o maa mab mai mam man mao mat mba mbb mbi mbm mbo mbt mi- mia mib mii mim min mio mit mma mmb mmi mmm mmn mmo mmt mna mnb mni mnm mnn mno mnt moa mob moi mom mon moo mot mta mtb mti mtm mtn mto mtt n-i naa nab nai nam nan nao nat nba nbb nbi nbm nbn nbo nbt nia nib nii nim nin nio nit nma nmb nmi nmm nmn nmo nmt nna nnb nni nnm nnn nno nnt no- noa nob noi nom non noo not nta ntb nti ntm ntn nto ntt o-i oaa oab oai oam oan oao oat ob- oba obb obi obm obn obo obt oia oib oii oim oin oio oit om- oma omb omi omm omn omo omt on- ona onb oni onn ono ont oo- ooa oob ooi oom oon ooo oot ot- ota otb oti otm otn oto ott taa tab tai tam tan tao tat tba tbb tbi tbm tbn tbo tbt tia tib tii tim tin tio tit tma tmb tmi tmm tmn tmo tmt tna tnb tni tnm tnn tno tnt to- toa tob toi tom ton too tot tta ttb tti ttm ttn tto ttt