-ic a-a a-c a-i aaa aac aae aai aak aao aap ac- aca acc ace aci ack aco acp aea aec aee aei aek aeo aep ai- aia aic aie aii aik aio aip aka akc ake aki akk ako akp aoa aoc aoe aoi aok aoo aop ap- apa apc ape api apk apo app c-- caa cac cae cai cak cao cap cca ccc cce cci cck cco ccp ce- cea cec cee cei cek ceo cep ci- cia cic cie cii cik cio cip cka ckc cki cko co- coa coc coe coi cok coo cop cpa cpc cpe cpi cpk cpo cpp eaa eac eae eai eak eao eap ec- eca ecc ece eci eck eco eea eec eee eek eeo eep eia eic eie eii eik eio eip eka ekc eke eki eko ekp eo- eoa eoc eoe eoi eok eoo eop ep- epa epc epe epi epo epp ia- iaa iac iae iai iao iap ica icc ice ici ick ico icp ie- iea iec iee iei iek iep iia iic iie iii iio iip ika ikc ike iki ikk iko io- ioa ioc ioe ioi ioo iop ipa ipc ipe ipi ipo ipp ka- kaa kac kae kai kak kao kap kca kcc kce kci kck kcp ke- kea kec kee kei kek keo kep kia kic kie kii kik kio kip kkc kke kki kkk kkp koa koc koe koi kok koo kop kpa kpc kpe kpi kpk kpo kpp o-i oaa oac oae oai oak oao oap oc- oca occ oci ock oco ocp oea oec oee oei oeo oep oia oic oie oii oik oio oip oka okc oke oki okk oko okp oo- ooa ooc ooi ook ooo oop op- opa opc ope opi opk opo opp p-p paa pac pae pai pak pao pap pca pcc pce pci pck pco pcp pea pec pee pei pek peo pep pia pic pie pii pik pio pip pka pkc pke pki pko pkp poa poc poe poi pok poo pop ppa ppc ppe ppi ppk ppo ppp