a-a a-b a-i a-t aaa aab aae aai aak aam aan aat ab- aba abb abe abi abk abm abn abt aea aeb aee aei aek aem aen aet ai- aia aib aie aii aik aim ain ait aka akb ake aki akk akm akn ama amb ame ami amk amm amn amt an- ana anb ane ani ank anm ann ant at- ata atb ate ati atm atn att baa bab bae bai bak bam ban bat bba bbb bbe bbi bbk bbm bbn bbt be- bea beb bee bei bek bem ben bet bi- bia bib bie bii bik bim bin bit bka bkb bke bkk bkm bkn bkt bma bmb bme bmi bmk bmm bmn bmt bna bnb bne bni bnk bnn bnt bta btb bte bti btk btm btn btt eaa eab eae eai eak eam ean eat eba ebb ebe ebi ebk ebm ebn ebt eea eeb eee eek eem een eet eia eib eie eii eik eim ein eit eka ekb eke eki ekt em- ema emb eme emi emk emm emn emt en- ena enb ene eni enk enm enn ent eta etb ete eti etk etm etn ett ia- iaa iab iae iai iam ian iat iba ibb ibe ibi ibk ibm ibn ibt ie- iea iee iei iek iem ien iet iia iib iie iii iim iin iit ika ikb ike iki ikk ikt im- ima imb ime imi imm imn imt in- ina inb ine ini ink inm inn int ita itb ite iti itk itm itn itt k-t ka- kaa kab kae kai kak kam kan kat kba kbb kbe kbi kbk kbm kbn ke- kea keb kee kei kek kem ken ket kia kib kie kii kik kim kin kit kkb kke kki kkk kkm kkn kkt kma kmb kme kmi kmk kmm kmt kn- kna kne kni knk knm knn knt kta ktb kte ktk ktm ktn ktt maa mab mae mai mak mam man mat mba mbb mbe mbi mbk mbm mbt mea meb mee mei mek mem men met mi- mia mib mie mii mik mim min mit mka mkb mke mkk mkm mkn mkt mma mmb mme mmi mmk mmm mmn mmt mna mnb mne mni mnk mnm mnn mnt mta mtb mte mti mtk mtm mtn mtt n-i naa nab nae nai nak nam nan nat nba nbb nbe nbi nbk nbm nbn nbt ne- nea neb nee nei nek nem nen net nia nib nie nii nik nim nin nit nka nke nki nkk nkm nkn nkt nma nmb nme nmi nmk nmm nmn nmt nna nnb nne nni nnk nnm nnn nnt nta ntb nte nti ntk ntm ntn ntt taa tab tae tai tak tam tan tat tba tbb tbe tbi tbk tbm tbn tbt te- tea teb tee tei tek tem ten tet tia tib tie tii tik tim tin tit tka tkb tke tkk tkm tkt tma tmb tme tmi tmk tmm tmn tmt tna tnb tne tni tnk tnm tnn tnt tta ttb tte tti ttk ttm ttn ttt