-ic a-a a-c a-i aaa aac aai aak aao aap ac- aca acc aci ack aco acp ai- aia aic aii aik aio aip aka akc aki akk ako akp aoa aoc aoi aok aoo aop ap- apa apc api apk apo app c-- caa cac cai cak cao cap cca ccc cci cck cco ccp ci- cia cic cii cik cio cip cka ckc cki cko co- coa coc coi cok coo cop cpa cpc cpi cpk cpo cpp ia- iaa iac iai iao iap ica icc ici ick ico icp iia iic iii iio iip ika ikc iki ikk iko io- ioa ioc ioi ioo iop ipa ipc ipi ipo ipp ka- kaa kac kai kak kao kap kca kcc kci kck kcp kia kic kii kik kio kip kkc kki kkk kkp koa koc koi kok koo kop kpa kpc kpi kpk kpo kpp o-i oaa oac oai oak oao oap oc- oca occ oci ock oco ocp oia oic oii oik oio oip oka okc oki okk oko okp oo- ooa ooc ooi ook ooo oop op- opa opc opi opk opo opp p-p paa pac pai pak pao pap pca pcc pci pck pco pcp pia pic pii pik pio pip pka pkc pki pko pkp poa poc poi pok poo pop ppa ppc ppi ppk ppo ppp