-ic a-a a-c a-i aaa aac aaf aai aan aao aap aas ac- aca acc acf aci acn aco acp acs af- afa afc aff afi afn afo afp afs ai- aia aic aif aii ain aio aip ais an- ana anc anf ani ann ano anp ans aoa aoc aof aoi aon aoo aop aos ap- apa apc apf api apn apo app aps as- asa asc asf asi asn aso asp ass c-- caa cac caf cai can cao cap cas cca ccc ccf cci ccn cco ccp ccs cfa cfc cff cfi cfn cfo cfp cfs ci- cia cic cif cii cin cio cip cis cn- cna cnc cnf cni cnn cno cnp cns co- coa coc cof coi con coo cop cos cpa cpc cpf cpi cpn cpo cpp cps csa csc csf csi csn cso csp css faa fac faf fai fan fao fap fas fca fcc fcf fci fcn fco fcp fcs ffa ffc fff ffi ffn ffo ffp ffs fia fic fif fii fin fip fis fna fnc fnf fni fnn fnp fns foa foc fof foi fon foo fop fos fpa fpc fpi fpn fpo fpp fps fsa fsc fsf fsi fsn fso fsp fss i-f ia- iaa iac iaf iai ian iao iap ias ica icc icf ici icn ico icp ics ifa ifc iff ifi ifn ifo ifp ifs iia iic iif iii iin iio iip iis in- ina inc inf ini inn ino inp ins io- ioa ioc iof ioi ion ioo iop ios ipa ipc ipf ipi ipn ipo ipp ips is- isa isc isf isi isn iso isp iss n-i naa nac naf nai nan nao nap nas nca ncc ncf nci ncn nco ncp ncs nfa nfc nff nfi nfn nfo nfp nfs nia nic nif nii nin nio nip nis nna nnc nnf nni nnn nno nnp nns no- noa noc nof noi non noo nop nos npa npc npf npi npn npo npp nps nsa nsc nsf nsi nsn nso nsp nss o-i oaa oac oaf oai oan oao oap oas oc- oca occ ocf oci ocn oco ocp ocs of- ofa ofc off ofi ofn ofo ofp ofs oia oic oif oii oin oio oip ois on- ona onc onf oni onn ono onp ons oo- ooa ooc oof ooi oon ooo oop oos op- opa opc opf opi opn opo opp ops os- osa osc osf osi osn oso osp oss p-p paa pac paf pai pan pao pap pas pca pcc pcf pci pcn pco pcp pcs pfa pfc pff pfi pfn pfo pfp pfs pia pic pif pii pin pio pip pis pn- pna pnc pnf pni pnn pno pnp pns poa poc pof poi pon poo pop pos ppa ppc ppf ppi ppn ppo ppp pps ps- psa psc psf psi psn pso psp pss saa sac saf sai san sao sap sas sca scc scf sci scn sco scp scs sfa sfc sff sfi sfn sfo sfp sfs sia sic sif sii sin sio sip sis sna snc snf sni snn sno snp sns soa soc sof soi son soo sop sos spa spc spf spi spn spo spp sps ss- ssa ssc ssf ssi ssn sso ssp sss