-ic a-a a-c a-i aaa aac aae aai aan aao aap ac- aca acc ace aci acn aco acp aea aec aee aei aen aeo aep ai- aia aic aie aii ain aio aip an- ana anc ane ani ann ano anp aoa aoc aoe aoi aon aoo aop ap- apa apc ape api apn apo app c-- caa cac cae cai can cao cap cca ccc cce cci ccn cco ccp ce- cea cec cee cei cen ceo cep ci- cia cic cie cii cin cio cip cn- cna cnc cne cni cnn cno cnp co- coa coc coe coi con coo cop cpa cpc cpe cpi cpn cpo cpp eaa eac eae eai ean eao eap ec- eca ecc ece eci ecn eco eea eec eee een eeo eep eia eic eie eii ein eio eip en- ena enc ene eni enn eno enp eo- eoa eoc eoe eoi eon eoo eop ep- epa epc epe epi epn epo epp ia- iaa iac iae iai ian iao iap ica icc ice ici icn ico icp ie- iea iec iee iei ien iep iia iic iie iii iin iio iip in- ina inc ine ini inn ino inp io- ioa ioc ioe ioi ion ioo iop ipa ipc ipe ipi ipn ipo ipp n-i naa nac nae nai nan nao nap nca ncc nce nci ncn nco ncp ne- nea nec nee nei nen neo nep nia nic nie nii nin nio nip nna nnc nne nni nnn nno nnp no- noa noc noe noi non noo nop npa npc npe npi npn npo npp o-i oaa oac oae oai oan oao oap oc- oca occ oci ocn oco ocp oea oec oee oei oen oeo oep oia oic oie oii oin oio oip on- ona onc one oni onn ono onp oo- ooa ooc ooi oon ooo oop op- opa opc ope opi opn opo opp p-p paa pac pae pai pan pao pap pca pcc pce pci pcn pco pcp pea pec pee pei pen peo pep pia pic pie pii pin pio pip pn- pna pnc pne pni pnn pno pnp poa poc poe poi pon poo pop ppa ppc ppe ppi ppn ppo ppp