a-a a-b a-i a-t aaa aab aai aam aan aao aat aax ab- aba abb abi abm abn abo abt abx ai- aia aib aii aim ain aio ait aix ama amb ami amm amn amo amt amx an- ana anb ani anm ann ano ant anx aoa aob aoi aom aon aoo aot aox at- ata atb ati atm atn ato att atx ax- axa axi axm axn axo axt axx baa bab bai bam ban bao bat bax bba bbb bbi bbm bbn bbo bbt bbx bi- bia bib bii bim bin bio bit bix bma bmb bmi bmm bmn bmo bmt bmx bna bnb bni bnn bno bnt bnx boa bob boi bom bon boo bot box bta btb bti btm btn bto btt btx bxb bxi bxm bxn bxo bxx ia- iaa iab iai iam ian iao iat iba ibb ibi ibm ibn ibo ibt ibx iia iib iii iim iin iio iit iix im- ima imb imi imm imn imo imt imx in- ina inb ini inm inn ino int inx io- ioa iob ioi iom ion ioo iot ita itb iti itm itn ito itt itx ixi ixn m-o maa mab mai mam man mao mat max mba mbb mbi mbm mbo mbt mbx mi- mia mib mii mim min mio mit mix mma mmb mmi mmm mmn mmo mmt mmx mna mnb mni mnm mnn mno mnt moa mob moi mom mon moo mot mox mta mtb mti mtm mtn mto mtt mtx mxa mxi mxn n-i naa nab nai nam nan nao nat nax nba nbb nbi nbm nbn nbo nbt nbx nia nib nii nim nin nio nit nix nma nmb nmi nmm nmn nmo nmt nna nnb nni nnm nnn nno nnt no- noa nob noi nom non noo not nox nta ntb nti ntm ntn nto ntt ntx nxt o-i oaa oab oai oam oan oao oat oax ob- oba obb obi obm obn obo obt obx oia oib oii oim oin oio oit om- oma omb omi omm omn omo omt omx on- ona onb oni onn ono ont onx oo- ooa oob ooi oom oon ooo oot oox ot- ota otb oti otm otn oto ott ox- oxa oxb oxi oxn oxo oxt oxx t-x taa tab tai tam tan tao tat tax tba tbb tbi tbm tbn tbo tbt tia tib tii tim tin tio tit tix tma tmb tmi tmm tmn tmo tmt tmx tna tnb tni tnm tnn tno tnt tnx to- toa tob toi tom ton too tot tox tta ttb tti ttm ttn tto ttt ttx txi txn txt xaa xam xan xat xbx xia xii xin xio xit xix xma xmi xmm xmo xmt xmx xna xno xoa xoi xom xon xoo xot xox xti xtm xtx xxi xxo xxx