-ic -ol bbb bbc bbe bbi bbl bbo bcb bcc bce bci bcl bco be- beb bec bee bei bel beo bi- bib bic bie bii bil bio blb blc ble bli bll blo bob boc boe boi bol boo c-- cbb cbc cbe cbi cbl cbo ccb ccc cce cci ccl cco ce- ceb cec cee cei cel ceo ci- cib cic cie cii cil cio cl- clb clc cle cli cll clo co- cob coc coe coi col coo ebb ebc ebe ebi ebl ebo ec- ecb ecc ece eci ecl eco eeb eec eee eel eeo eib eic eie eii eil eio elb elc ele eli ell elo eo- eob eoc eoe eoi eol eoo ibb ibc ibe ibi ibl ibo icb icc ice ici icl ico ie- iec iee iei iel iib iic iie iii iil iio il- ilb ilc ile ili ill ilo io- iob ioc ioe ioi iol ioo lbb lbc lbe lbi lbl lbo lcb lcc lce lci lcl lco leb lec lee lei lel leo lib lic lie lii lil lio llb llc lle lli lll llo lob loc loe loi lol loo o-i ob- obb obc obe obi obl obo oc- ocb occ oci ocl oco oeb oec oee oei oel oeo oib oic oie oii oil oio olb olc ole oli oll olo oo- oob ooc ooi ool ooo