-ic b-u bbb bbc bbi bbm bbn bbu bcb bcc bci bcm bcn bcu bi- bib bic bii bim bin biu bmb bmc bmi bmm bmn bmu bnb bnc bni bnn bnu bub buc bui bum bun buu c-- cbb cbc cbi cbm cbn cbu ccb ccc cci ccm ccn ccu ci- cib cic cii cim cin ciu cmb cmc cmi cmm cmn cmu cn- cnb cnc cni cnm cnn cnu cub cuc cui cum cun cuu ibb ibc ibi ibm ibn ibu icb icc ici icm icn icu iib iic iii iim iin iiu im- imb imc imi imm imn imu in- inb inc ini inm inn inu iu- iub iuc iui ium mbb mbc mbi mbm mbu mc- mcb mcc mci mcm mcn mcu mi- mib mic mii mim min miu mmb mmc mmi mmm mmn mmu mnb mnc mni mnm mnn mnu mub muc mui mum mun muu n-i nbb nbc nbi nbm nbn nbu ncb ncc nci ncm ncn ncu nib nic nii nim nin niu nmb nmc nmi nmm nmn nmu nnb nnc nni nnm nnn nnu nub nuc nui num nun nuu ubb ubc ubi ubn ubu ucb ucc uci ucm ucn ucu uib uic uii uim uin uiu um- umb umc umi umm umn umu un- unb unc uni unm unn unu uuc uum uun uuu