-ic b-u bbb bbc bbf bbi bbm bbn bbu bcb bcc bcf bci bcm bcn bcu bfb bfc bff bfi bfm bfn bfu bi- bib bic bif bii bim bin biu bmb bmc bmf bmi bmm bmn bmu bnb bnc bnf bni bnn bnu bub buc buf bui bum bun buu c-- cbb cbc cbf cbi cbm cbn cbu ccb ccc ccf cci ccm ccn ccu cfb cfc cff cfi cfm cfn cfu ci- cib cic cif cii cim cin ciu cmb cmc cmf cmi cmm cmn cmu cn- cnb cnc cnf cni cnm cnn cnu cub cuc cuf cui cum cun cuu fbb fbc fbf fbi fbm fbn fbu fcb fcc fcf fci fcm fcn fcu ffc fff ffi ffm ffn ffu fib fic fif fii fim fin fiu fmb fmc fmf fmi fmm fmn fmu fnb fnc fnf fni fnm fnn fnu fub fuf fui fum fun fuu i-f ibb ibc ibf ibi ibm ibn ibu icb icc icf ici icm icn icu ifb ifc iff ifi ifm ifn ifu iib iic iif iii iim iin iiu im- imb imc imf imi imm imn imu in- inb inc inf ini inm inn inu iu- iub iuc iui ium m-f mbb mbc mbf mbi mbm mbu mc- mcb mcc mcf mci mcm mcn mcu mfb mfc mff mfi mfm mfn mfu mi- mib mic mif mii mim min miu mmb mmc mmf mmi mmm mmn mmu mnb mnc mnf mni mnm mnn mnu mub muc muf mui mum mun muu n-i nbb nbc nbf nbi nbm nbn nbu ncb ncc ncf nci ncm ncn ncu nfb nfc nff nfi nfn nfu nib nic nif nii nim nin niu nmb nmc nmi nmm nmn nmu nnb nnc nnf nni nnm nnn nnu nub nuc nui num nun nuu ubb ubc ubf ubi ubn ubu ucb ucc ucf uci ucm ucn ucu ufc uff ufi ufm ufn ufu uib uic uif uii uim uin uiu um- umb umc umf umi umm umn umu un- unb unc unf uni unm unn unu uuc uum uun uuu