-ic -ol c-- ccc ccd cci cck ccl cco cdc cdd cdi cdk cdl cdo ci- cic cid cii cik cil cio ckc ckd cki cko cl- clc cld cli clk cll clo co- coc cod coi cok col coo dcc dcd dci dck dcl dco ddc ddd ddi ddk ddl ddo di- dic did dii dik dil dio dkc dki dkk dkl dko dl- dlc dld dli dlk dll dlo doc dod doi dok dol doo i-d icc icd ici ick icl ico idc idd idi idk idl ido iic iid iii iil iio ikc iki ikk ikl iko il- ilc ild ili ilk ill ilo io- ioc iod ioi iol ioo kcc kcd kci kck kcl kdc kdk kdl kdo kic kid kii kik kil kio kkc kki kkk kkl kl- klc kld kli klo koc kod koi kok kol koo lcc lcd lci lck lcl lco ldc ldd ldi ldk ldl ldo lic lid lii lik lil lio lkl llc lld lli llk lll llo loc lod loi lok lol loo o-i oc- occ ocd oci ock ocl oco odc odd odi odl odo oic oid oii oik oil oio okc okd oki okk okl oko olc old oli olk oll olo oo- ooc ood ooi ook ool ooo