-ic a-a a-c a-i aaa aac aae aai aak aan aao aap ac- aca acc ace aci ack acn aco acp aea aec aee aei aek aen aeo aep ai- aia aic aie aii aik ain aio aip aka akc ake aki akk akn ako akp an- ana anc ane ani ank ann ano anp aoa aoc aoe aoi aok aon aoo aop ap- apa apc ape api apk apn apo app c-- caa cac cae cai cak can cao cap cca ccc cce cci cck ccn cco ccp ce- cea cec cee cei cek cen ceo cep ci- cia cic cie cii cik cin cio cip cka ckc cki cko cn- cna cnc cne cni cnn cno cnp co- coa coc coe coi cok con coo cop cpa cpc cpe cpi cpk cpn cpo cpp eaa eac eae eai eak ean eao eap ec- eca ecc ece eci eck ecn eco eea eec eee eek een eeo eep eia eic eie eii eik ein eio eip eka ekc eke eki eko ekp en- ena enc ene eni enk enn eno enp eo- eoa eoc eoe eoi eok eon eoo eop ep- epa epc epe epi epn epo epp ia- iaa iac iae iai ian iao iap ica icc ice ici ick icn ico icp ie- iea iec iee iei iek ien iep iia iic iie iii iin iio iip ika ikc ike iki ikk iko in- ina inc ine ini ink inn ino inp io- ioa ioc ioe ioi ion ioo iop ipa ipc ipe ipi ipn ipo ipp ka- kaa kac kae kai kak kan kao kap kca kcc kce kci kck kcn kcp ke- kea kec kee kei kek ken keo kep kia kic kie kii kik kin kio kip kkc kke kki kkk kkn kkp kn- kna knc kne kni knk knn kno knp koa koc koe koi kok kon koo kop kpa kpc kpe kpi kpk kpn kpo kpp n-i naa nac nae nai nak nan nao nap nca ncc nce nci nck ncn nco ncp ne- nea nec nee nei nek nen neo nep nia nic nie nii nik nin nio nip nka nkc nke nki nkk nkn nko nkp nna nnc nne nni nnk nnn nno nnp no- noa noc noe noi nok non noo nop npa npc npe npi npn npo npp o-i oaa oac oae oai oak oan oao oap oc- oca occ oci ock ocn oco ocp oea oec oee oei oen oeo oep oia oic oie oii oik oin oio oip oka okc oke oki okk oko okp on- ona onc one oni onk onn ono onp oo- ooa ooc ooi ook oon ooo oop op- opa opc ope opi opk opn opo opp p-p paa pac pae pai pak pan pao pap pca pcc pce pci pck pcn pco pcp pea pec pee pei pek pen peo pep pia pic pie pii pik pin pio pip pka pkc pke pki pkn pko pkp pn- pna pnc pne pni pnk pnn pno pnp poa poc poe poi pok pon poo pop ppa ppc ppe ppi ppk ppn ppo ppp