-ic -ol b-u bbb bbc bbi bbk bbl bbo bbu bcb bcc bci bck bcl bco bcu bcz bi- bib bic bii bik bil bio biu biz bkb bkc bkk bkl bko blb blc bli blk bll blo blu blz bob boc boi bok bol boo bou boz bub buc bui buk bul buo buu buz bzo bzu bzz c-- cbb cbc cbi cbk cbl cbo cbu cbz ccb ccc cci cck ccl cco ccu ccz ci- cib cic cii cik cil cio ciu ckb ckc cki cko cl- clb clc cli clk cll clo clu clz co- cob coc coi cok col coo cou coz cub cuc cui cuk cul cuo cuu cuz cz- czc czk czo ibb ibc ibi ibk ibl ibo ibu ibz icb icc ici ick icl ico icu icz iib iic iii iil iio iiu ikb ikc iki ikk ikl iko iku il- ilb ilc ili ilk ill ilo ilu ilz io- iob ioc ioi iol ioo iou iu- iub iuc iui iuz izi izo izu izz k-z kbb kbc kbi kbk kbl kbo kbu kbz kcb kcc kci kck kcl kcu kib kic kii kik kil kio kiu kiz kkb kkc kki kkk kkl kku kl- klb klc kli klo klu klz kob koc koi kok kol koo kou koz kub kuc kui kuk kul kuu kzo lbb lbc lbi lbk lbl lbo lbu lcb lcc lci lck lcl lco lcu lib lic lii lik lil lio liu liz lkb lkl llb llc lli llk lll llo llu llz lob loc loi lok lol loo lou loz lub luc lui luk lul luo luu luz lzi lzo lzu o-i ob- obb obc obi obk obl obo obu oc- ocb occ oci ock ocl oco ocu ocz oib oic oii oik oil oio oiu oiz okb okc oki okk okl oko oku olb olc oli olk oll olo olu oo- oob ooc ooi ook ool ooo ou- ouc oui ouk oul ouo ozo ozu ozz ubb ubc ubi ubk ubl ubo ubu ucb ucc uci uck ucl uco ucu uib uic uii uil uio uiu ukb ukc uki ukk ukl uku ukz ulb ulc uli ulk ull ulo ulu uob uoc uok uol uoo uuc uuu uzb uzi uzo uzu zbb zbc zbl zcl zco zib zik zil zio ziz zo- zob zoc zoi zok zol zoo zou zub zuc zui zuk zul zuz zzz