-ic a-a a-c a-i aaa aac aaf aai aak aan aao ac- aca acc acf aci ack acn aco af- afa afc aff afi afk afn afo ai- aia aic aif aii aik ain aio aka akc aki akk akn ako an- ana anc anf ani ank ann ano aoa aoc aof aoi aok aon aoo c-- caa cac caf cai cak can cao cca ccc ccf cci cck ccn cco cfa cfc cff cfi cfk cfn cfo ci- cia cic cif cii cik cin cio cka ckc cki cko cn- cna cnc cnf cni cnn cno co- coa coc cof coi cok con coo faa fac faf fai fak fan fao fca fcc fcf fci fck fcn fco ffa ffc fff ffi ffk ffn ffo fia fic fif fii fik fin fka fkc fkf fki fkk fna fnc fnf fni fnk fnn foa foc fof foi fok fon foo i-f ia- iaa iac iaf iai ian iao ica icc icf ici ick icn ico ifa ifc iff ifi ifn ifo iia iic iif iii iin iio ika ikc ikf iki ikk iko in- ina inc inf ini ink inn ino io- ioa ioc iof ioi ion ioo ka- kaa kac kaf kai kak kan kao kca kcc kci kck kcn kfa kfc kff kfi kfo kia kic kif kii kik kin kio kkc kki kkk kkn kn- kna knc knf kni knk knn kno koa koc kof koi kok kon koo n-i naa nac naf nai nak nan nao nca ncc ncf nci nck ncn nco nfa nfc nff nfi nfk nfn nfo nia nic nif nii nik nin nio nka nkc nkf nki nkk nkn nko nna nnc nnf nni nnk nnn nno no- noa noc nof noi nok non noo o-i oaa oac oaf oai oak oan oao oc- oca occ ocf oci ock ocn oco of- ofa ofc off ofi ofn ofo oia oic oif oii oik oin oio oka okc oki okk oko on- ona onc onf oni onk onn ono oo- ooa ooc oof ooi ook oon ooo