-ic a-a a-c a-i aaa aac aae aaf aai aan aao aap ac- aca acc ace acf aci acn aco acp aea aec aee aef aei aen aeo aep af- afa afc afe aff afi afn afo afp ai- aia aic aie aif aii ain aio aip an- ana anc ane anf ani ann ano anp aoa aoc aoe aof aoi aon aoo aop ap- apa apc ape apf api apn apo app c-- caa cac cae caf cai can cao cap cca ccc cce ccf cci ccn cco ccp ce- cea cec cee cef cei cen ceo cep cfa cfc cfe cff cfi cfn cfo cfp ci- cia cic cie cif cii cin cio cip cn- cna cnc cne cnf cni cnn cno cnp co- coa coc coe cof coi con coo cop cpa cpc cpe cpf cpi cpn cpo cpp eaa eac eae eaf eai ean eao eap ec- eca ecc ece ecf eci ecn eco eea eec eee eef een eeo eep ef- efa efc efe eff efi efo efp eia eic eie eif eii ein eio eip en- ena enc ene enf eni enn eno enp eo- eoa eoc eoe eof eoi eon eoo eop ep- epa epc epe epf epi epn epo epp faa fac fae faf fai fan fao fap fca fcc fce fcf fci fcn fco fcp fea fec fee fef fei fen feo fep ffa ffc ffe fff ffi ffn ffo ffp fia fic fie fif fii fin fip fna fnc fne fnf fni fnn fnp foa foc foe fof foi fon foo fop fpa fpc fpe fpi fpn fpo fpp i-f ia- iaa iac iae iaf iai ian iao iap ica icc ice icf ici icn ico icp ie- iea iec iee ief iei ien iep ifa ifc ife iff ifi ifn ifo ifp iia iic iie iif iii iin iio iip in- ina inc ine inf ini inn ino inp io- ioa ioc ioe iof ioi ion ioo iop ipa ipc ipe ipf ipi ipn ipo ipp n-i naa nac nae naf nai nan nao nap nca ncc nce ncf nci ncn nco ncp ne- nea nec nee nef nei nen neo nep nfa nfc nfe nff nfi nfn nfo nfp nia nic nie nif nii nin nio nip nna nnc nne nnf nni nnn nno nnp no- noa noc noe nof noi non noo nop npa npc npe npf npi npn npo npp o-i oaa oac oae oaf oai oan oao oap oc- oca occ ocf oci ocn oco ocp oea oec oee oef oei oen oeo oep of- ofa ofc ofe off ofi ofn ofo ofp oia oic oie oif oii oin oio oip on- ona onc one onf oni onn ono onp oo- ooa ooc oof ooi oon ooo oop op- opa opc ope opf opi opn opo opp p-p paa pac pae paf pai pan pao pap pca pcc pce pcf pci pcn pco pcp pea pec pee pef pei pen peo pep pfa pfc pfe pff pfi pfn pfo pfp pia pic pie pif pii pin pio pip pn- pna pnc pne pnf pni pnn pno pnp poa poc poe pof poi pon poo pop ppa ppc ppe ppf ppi ppn ppo ppp