-ic b-u bbb bbc bbi bbl bbm bbu bcb bcc bci bcl bcm bcu bi- bib bic bii bil bim biu blb blc bli bll blm blu bmb bmc bmi bml bmm bmu bub buc bui bul bum buu c-- cbb cbc cbi cbl cbm cbu ccb ccc cci ccl ccm ccu ci- cib cic cii cil cim ciu cl- clb clc cli cll clm clu cmb cmc cmi cml cmm cmu cub cuc cui cul cum cuu ibb ibc ibi ibl ibm ibu icb icc ici icl icm icu iib iic iii iil iim iiu il- ilb ilc ili ill ilm ilu im- imb imc imi iml imm imu iu- iub iuc iui ium lbb lbc lbi lbl lbm lbu lcb lcc lci lcl lcm lcu lib lic lii lil lim liu llb llc lli lll llm llu lmb lmc lmi lml lmm lmu lub luc lui lul lum luu mbb mbc mbi mbl mbm mbu mc- mcb mcc mci mcl mcm mcu mi- mib mic mii mil mim miu mlb mlc mli mll mlm mlu mmb mmc mmi mml mmm mmu mub muc mui mul mum muu ubb ubc ubi ubl ubu ucb ucc uci ucl ucm ucu uib uic uii uil uim uiu ulb ulc uli ull ulm ulu um- umb umc umi uml umm umu uuc uum uuu