-ic -ol bbb bbc bbi bbk bbl bbo bcb bcc bci bck bcl bco bcz bi- bib bic bii bik bil bio biz bkb bkc bkk bkl bko blb blc bli blk bll blo blz bob boc boi bok bol boo boz bzo bzz c-- cbb cbc cbi cbk cbl cbo cbz ccb ccc cci cck ccl cco ccz ci- cib cic cii cik cil cio ckb ckc cki cko cl- clb clc cli clk cll clo clz co- cob coc coi cok col coo coz cz- czc czk czo ibb ibc ibi ibk ibl ibo ibz icb icc ici ick icl ico icz iib iic iii iil iio ikb ikc iki ikk ikl iko il- ilb ilc ili ilk ill ilo ilz io- iob ioc ioi iol ioo izi izo izz k-z kbb kbc kbi kbk kbl kbo kbz kcb kcc kci kck kcl kib kic kii kik kil kio kiz kkb kkc kki kkk kkl kl- klb klc kli klo klz kob koc koi kok kol koo koz kzo lbb lbc lbi lbk lbl lbo lcb lcc lci lck lcl lco lib lic lii lik lil lio liz lkb lkl llb llc lli llk lll llo llz lob loc loi lok lol loo loz lzi lzo o-i ob- obb obc obi obk obl obo oc- ocb occ oci ock ocl oco ocz oib oic oii oik oil oio oiz okb okc oki okk okl oko olb olc oli olk oll olo oo- oob ooc ooi ook ool ooo ozo ozz zbb zbc zbl zcl zco zib zik zil zio ziz zo- zob zoc zoi zok zol zoo zzz