a-a a-c aaa aac aae aam aao aau aax ac- aca acc ace acm aco acu acx aea aec aee aem aeo aeu aex ama amc ame amm amo amu amx aoa aoc aoe aom aoo aou aox au- aua auc aue aum auo aux ax- axa axe axm axo axx c-- caa cac cae cam cao cau cax cca ccc cce ccm cco ccu ccx ce- cea cec cee cem ceo ceu cex cma cmc cme cmm cmo cmu cmx co- coa coc coe com coo cou cox cua cuc cue cum cuo cuu cxc cxo cxx eaa eac eae eam eao eau eax ec- eca ecc ece ecm eco ecu ecx eea eec eee eem eeo eex em- ema emc eme emm emo emu emx eo- eoa eoc eoe eom eoo eou eu- eua euc eue eux ex- exa exc exe exo exu exx m-o maa mac mae mam mao mau max mc- mca mcc mce mcm mco mcu mcx mea mec mee mem meo meu mex mma mmc mme mmm mmo mmu mmx moa moc moe mom moo mou mox mua muc mue mum muu mux mxa mxc mxu oaa oac oae oam oao oau oax oc- oca occ ocm oco ocu ocx oea oec oee oem oeo oex om- oma omc ome omm omo omu omx oo- ooa ooc oom ooo oox ou- oua ouc oue oum ouo ox- oxa oxc oxo oxx ua- uaa uac uae uam uao uau uca ucc uce ucm uco ucu uea uec uee uem um- uma umc ume umm umo umu uoa uoc uoe uom uoo uox uua uuc uue uum uuu uxc uxo uxu xaa xac xam xau xcx xee xem xeu xex xma xmc xmm xmo xmu xmx xoa xoc xom xoo xox xue xxo xxx