-ic bbb bbc bbe bbi bbk bbl bcb bcc bce bci bck bcl bcv be- beb bec bee bei bek bel bev bi- bib bic bie bii bik bil biv bkb bkc bke bkk bkl bkv blb blc ble bli blk bll blv bvb bvc bve bvi bvk bvl bvv c-- cbb cbc cbe cbi cbk cbl cbv ccb ccc cce cci cck ccl ccv ce- ceb cec cee cei cek cel cev ci- cib cic cie cii cik cil civ ckb ckc cki cl- clb clc cle cli clk cll clv cvb cvc cve cvi cvk cvl cvv ebb ebc ebe ebi ebk ebl ebv ec- ecb ecc ece eci eck ecl ecv eeb eec eee eek eel eev eib eic eie eii eik eil eiv ekb ekc eke eki ekl ekv elb elc ele eli elk ell elv evb evc eve evi evl evv i-v ibb ibc ibe ibi ibk ibl ibv icb icc ice ici ick icl icv ie- iec iee iei iek iel iev iib iic iie iii iil ikb ikc ike iki ikk ikl ikv il- ilb ilc ile ili ilk ill ilv ivb ivc ive ivi ivl ivv kbb kbc kbe kbi kbk kbl kcb kcc kce kci kck kcl ke- keb kec kee kei kek kel kev kib kic kie kii kik kil kiv kkb kkc kke kki kkk kkl kkv kl- klb klc kli klv kvb kvi kvk kvv lbb lbc lbe lbi lbk lbl lbv lcb lcc lce lci lck lcl lcv leb lec lee lei lek lel lev lib lic lie lii lik lil liv lkb lkl llb llc lle lli llk lll llv lvb lvc lve lvi lvl lvv v-e vbc vbi vbk vbl vbv vcc vce vci vcl veb vec vee vei vek vel vi- vib vic vie vii vik vil viv vkb vl- vlb vlc vle vlk vll vlv vvb vvc vvi vvv