-ic a-a a-c a-i aaa aac aaf aai aan aao aap ac- aca acc acf aci acn aco acp af- afa afc aff afi afn afo afp ai- aia aic aif aii ain aio aip an- ana anc anf ani ann ano anp aoa aoc aof aoi aon aoo aop ap- apa apc apf api apn apo app c-- caa cac caf cai can cao cap cca ccc ccf cci ccn cco ccp cfa cfc cff cfi cfn cfo cfp ci- cia cic cif cii cin cio cip cn- cna cnc cnf cni cnn cno cnp co- coa coc cof coi con coo cop cpa cpc cpf cpi cpn cpo cpp faa fac faf fai fan fao fap fca fcc fcf fci fcn fco fcp ffa ffc fff ffi ffn ffo ffp fia fic fif fii fin fip fna fnc fnf fni fnn fnp foa foc fof foi fon foo fop fpa fpc fpi fpn fpo fpp i-f ia- iaa iac iaf iai ian iao iap ica icc icf ici icn ico icp ifa ifc iff ifi ifn ifo ifp iia iic iif iii iin iio iip in- ina inc inf ini inn ino inp io- ioa ioc iof ioi ion ioo iop ipa ipc ipf ipi ipn ipo ipp n-i naa nac naf nai nan nao nap nca ncc ncf nci ncn nco ncp nfa nfc nff nfi nfn nfo nfp nia nic nif nii nin nio nip nna nnc nnf nni nnn nno nnp no- noa noc nof noi non noo nop npa npc npf npi npn npo npp o-i oaa oac oaf oai oan oao oap oc- oca occ ocf oci ocn oco ocp of- ofa ofc off ofi ofn ofo ofp oia oic oif oii oin oio oip on- ona onc onf oni onn ono onp oo- ooa ooc oof ooi oon ooo oop op- opa opc opf opi opn opo opp p-p paa pac paf pai pan pao pap pca pcc pcf pci pcn pco pcp pfa pfc pff pfi pfn pfo pfp pia pic pif pii pin pio pip pn- pna pnc pnf pni pnn pno pnp poa poc pof poi pon poo pop ppa ppc ppf ppi ppn ppo ppp