-ic bbb bbc bbe bbi bbl bbm bcb bcc bce bci bcl bcm be- beb bec bee bei bel bem bi- bib bic bie bii bil bim blb blc ble bli bll blm bmb bmc bme bmi bml bmm c-- cbb cbc cbe cbi cbl cbm ccb ccc cce cci ccl ccm ce- ceb cec cee cei cel cem ci- cib cic cie cii cil cim cl- clb clc cle cli cll clm cmb cmc cme cmi cml cmm ebb ebc ebe ebi ebl ebm ec- ecb ecc ece eci ecl ecm eeb eec eee eel eem eib eic eie eii eil eim elb elc ele eli ell elm em- emb emc eme emi eml emm ibb ibc ibe ibi ibl ibm icb icc ice ici icl icm ie- iec iee iei iel iem iib iic iie iii iil iim il- ilb ilc ile ili ill ilm im- imb imc ime imi iml imm lbb lbc lbe lbi lbl lbm lcb lcc lce lci lcl lcm leb lec lee lei lel lem lib lic lie lii lil lim llb llc lle lli lll llm lmb lmc lme lmi lml lmm mbb mbc mbe mbi mbl mbm mc- mcb mcc mce mci mcl mcm meb mec mee mei mel mem mi- mib mic mie mii mil mim mlb mlc mle mli mll mlm mmb mmc mme mmi mml mmm