-ic a-a a-b a-c a-i aaa aab aac aae aai aam aan aau ab- aba abb abc abe abi abm abn abu ac- aca acb acc ace aci acm acn acu aea aeb aec aee aei aem aen aeu ai- aia aib aic aie aii aim ain aiu ama amb amc ame ami amm amn amu an- ana anb anc ane ani anm ann anu au- aua aub auc aue aui aum aun b-u baa bab bac bae bai bam ban bau bba bbb bbc bbe bbi bbm bbn bbu bca bcb bcc bce bci bcm bcn bcu be- bea beb bec bee bei bem ben beu bi- bia bib bic bie bii bim bin biu bma bmb bmc bme bmi bmm bmn bmu bna bnb bnc bne bni bnn bnu bua bub buc bue bui bum bun buu c-- caa cab cac cae cai cam can cau cba cbb cbc cbe cbi cbm cbn cbu cca ccb ccc cce cci ccm ccn ccu ce- cea ceb cec cee cei cem cen ceu ci- cia cib cic cie cii cim cin ciu cma cmb cmc cme cmi cmm cmn cmu cn- cna cnb cnc cne cni cnm cnn cnu cua cub cuc cue cui cum cun cuu eaa eab eac eae eai eam ean eau eba ebb ebc ebe ebi ebm ebn ebu ec- eca ecb ecc ece eci ecm ecn ecu eea eeb eec eee eem een eia eib eic eie eii eim ein eiu em- ema emb emc eme emi emm emn emu en- ena enb enc ene eni enm enn enu eu- eua eub euc eue eui eun ia- iaa iab iac iae iai iam ian iau iba ibb ibc ibe ibi ibm ibn ibu ica icb icc ice ici icm icn icu ie- iea iec iee iei iem ien iia iib iic iie iii iim iin iiu im- ima imb imc ime imi imm imn imu in- ina inb inc ine ini inm inn inu iu- iua iub iuc iue iui ium maa mab mac mae mai mam man mau mba mbb mbc mbe mbi mbm mbu mc- mca mcb mcc mce mci mcm mcn mcu mea meb mec mee mei mem men meu mi- mia mib mic mie mii mim min miu mma mmb mmc mme mmi mmm mmn mmu mna mnb mnc mne mni mnm mnn mnu mua mub muc mue mui mum mun muu n-i naa nab nac nae nai nam nan nau nba nbb nbc nbe nbi nbm nbn nbu nca ncb ncc nce nci ncm ncn ncu ne- nea neb nec nee nei nem nen neu nia nib nic nie nii nim nin niu nma nmb nmc nme nmi nmm nmn nmu nna nnb nnc nne nni nnm nnn nnu nua nub nuc nue nui num nun nuu ua- uaa uab uac uae uai uam uan uau uba ubb ubc ube ubi ubn ubu uca ucb ucc uce uci ucm ucn ucu uea ueb uec uee uei uem uen uia uib uic uie uii uim uin uiu um- uma umb umc ume umi umm umn umu un- una unb unc une uni unm unn unu uua uuc uue uum uun uuu