-ic bbb bbc bbi bbl bbm bcb bcc bci bcl bcm bi- bib bic bii bil bim blb blc bli bll blm bmb bmc bmi bml bmm c-- cbb cbc cbi cbl cbm ccb ccc cci ccl ccm ci- cib cic cii cil cim cl- clb clc cli cll clm cmb cmc cmi cml cmm ibb ibc ibi ibl ibm icb icc ici icl icm iib iic iii iil iim il- ilb ilc ili ill ilm im- imb imc imi iml imm lbb lbc lbi lbl lbm lcb lcc lci lcl lcm lib lic lii lil lim llb llc lli lll llm lmb lmc lmi lml lmm mbb mbc mbi mbl mbm mc- mcb mcc mci mcl mcm mi- mib mic mii mil mim mlb mlc mli mll mlm mmb mmc mmi mml mmm