-ic bbb bbc bbe bbi bbl bcb bcc bce bci bcl bcv be- beb bec bee bei bel bev bi- bib bic bie bii bil biv blb blc ble bli bll blv bvb bvc bve bvi bvl bvv c-- cbb cbc cbe cbi cbl cbv ccb ccc cce cci ccl ccv ce- ceb cec cee cei cel cev ci- cib cic cie cii cil civ cl- clb clc cle cli cll clv cvb cvc cve cvi cvl cvv ebb ebc ebe ebi ebl ebv ec- ecb ecc ece eci ecl ecv eeb eec eee eel eev eib eic eie eii eil eiv elb elc ele eli ell elv evb evc eve evi evl evv i-v ibb ibc ibe ibi ibl ibv icb icc ice ici icl icv ie- iec iee iei iel iev iib iic iie iii iil il- ilb ilc ile ili ill ilv ivb ivc ive ivi ivl ivv lbb lbc lbe lbi lbl lbv lcb lcc lce lci lcl lcv leb lec lee lei lel lev lib lic lie lii lil liv llb llc lle lli lll llv lvb lvc lve lvi lvl lvv v-e vbc vbi vbl vbv vcc vce vci vcl veb vec vee vei vel vi- vib vic vie vii vil viv vl- vlb vlc vle vll vlv vvb vvc vvi vvv