-ic -ol bbb bbc bbi bbk bbl bbm bbo bcb bcc bci bck bcl bcm bco bi- bib bic bii bik bil bim bio bkb bkc bkk bkl bkm bko blb blc bli blk bll blm blo bmb bmc bmi bmk bml bmm bmo bob boc boi bok bol bom boo c-- cbb cbc cbi cbk cbl cbm cbo ccb ccc cci cck ccl ccm cco ci- cib cic cii cik cil cim cio ckb ckc cki ckm cko cl- clb clc cli clk cll clm clo cmb cmc cmi cmk cml cmm cmo co- cob coc coi cok col com coo ibb ibc ibi ibk ibl ibm ibo icb icc ici ick icl icm ico iib iic iii iil iim iio ikb ikc iki ikk ikl iko il- ilb ilc ili ilk ill ilm ilo im- imb imc imi iml imm imo io- iob ioc ioi iol iom ioo kbb kbc kbi kbk kbl kbm kbo kcb kcc kci kck kcl kcm kib kic kii kik kil kim kio kkb kkc kki kkk kkl kkm kl- klb klc kli klm klo kmb kmc kmi kmk kml kmm kmo kob koc koi kok kol kom koo lbb lbc lbi lbk lbl lbm lbo lcb lcc lci lck lcl lcm lco lib lic lii lik lil lim lio lkb lkl llb llc lli llk lll llm llo lmb lmc lmi lmk lml lmm lmo lob loc loi lok lol lom loo m-o mbb mbc mbi mbk mbl mbm mbo mc- mcb mcc mci mck mcl mcm mco mi- mib mic mii mik mil mim mio mkb mkc mkk mkl mkm mko mlb mlc mli mlk mll mlm mlo mmb mmc mmi mmk mml mmm mmo mob moc moi mok mol mom moo o-i ob- obb obc obi obk obl obm obo oc- ocb occ oci ock ocl ocm oco oib oic oii oik oil oim oio okb okc oki okk okl oko olb olc oli olk oll olm olo om- omb omc omi oml omm omo oo- oob ooc ooi ook ool oom ooo