-ic a-a a-c a-i aaa aac aae aaf aai aak aan aap aas ac- aca acc ace acf aci ack acn acp acs aea aec aee aef aei aek aen aep aes af- afa afc afe aff afi afk afn afp afs ai- aia aic aie aif aii aik ain aip ais aka akc ake aki akk akn akp aks an- ana anc ane anf ani ank ann anp ans ap- apa apc ape apf api apk apn app aps as- asa asc ase asf asi ask asn asp ass c-- caa cac cae caf cai cak can cap cas cca ccc cce ccf cci cck ccn ccp ccs ce- cea cec cee cef cei cek cen cep ces cfa cfc cfe cff cfi cfk cfn cfp cfs ci- cia cic cie cif cii cik cin cip cis cka ckc cki cks cn- cna cnc cne cnf cni cnn cnp cns cpa cpc cpe cpf cpi cpk cpn cpp cps csa csc cse csf csi csk csn csp css eaa eac eae eaf eai eak ean eap eas ec- eca ecc ece ecf eci eck ecn ecs eea eec eee eef eek een eep ees ef- efa efc efe eff efi efp efs eia eic eie eif eii eik ein eip eis eka ekc eke ekf eki ekp eks en- ena enc ene enf eni enk enn enp ens ep- epa epc epe epf epi epn epp eps es- esa esc ese esf esi esk esn esp ess faa fac fae faf fai fak fan fap fas fca fcc fce fcf fci fck fcn fcp fcs fea fec fee fef fei fek fen fep fes ffa ffc ffe fff ffi ffk ffn ffp ffs fia fic fie fif fii fik fin fip fis fka fkc fkf fki fkk fkp fna fnc fne fnf fni fnk fnn fnp fns fpa fpc fpe fpi fpk fpn fpp fps fsa fsc fse fsf fsi fsk fsn fsp fss i-f ia- iaa iac iae iaf iai ian iap ias ica icc ice icf ici ick icn icp ics ie- iea iec iee ief iei iek ien iep ies ifa ifc ife iff ifi ifn ifp ifs iia iic iie iif iii iin iip iis ika ikc ike ikf iki ikk iks in- ina inc ine inf ini ink inn inp ins ipa ipc ipe ipf ipi ipn ipp ips is- isa isc ise isf isi isk isn isp iss ka- kaa kac kae kaf kai kak kan kap kas kca kcc kce kci kck kcn kcp kcs ke- kea kec kee kef kei kek ken kep kes kfa kfc kff kfi kfs kia kic kie kif kii kik kin kip kis kkc kke kki kkk kkn kkp kks kn- kna knc kne knf kni knk knn knp kpa kpc kpe kpf kpi kpk kpn kpp kps ksa ksc kse ksf ksi ksk ksn ksp kss n-i naa nac nae naf nai nak nan nap nas nca ncc nce ncf nci nck ncn ncp ncs ne- nea nec nee nef nei nek nen nep nes nfa nfc nfe nff nfi nfk nfn nfp nfs nia nic nie nif nii nik nin nip nis nka nkc nke nkf nki nkk nkn nkp nks nna nnc nne nnf nni nnk nnn nnp nns npa npc npe npf npi npn npp nps nsa nsc nse nsf nsi nsk nsn nsp nss p-p paa pac pae paf pai pak pan pap pas pca pcc pce pcf pci pck pcn pcp pcs pea pec pee pef pei pek pen pep pes pfa pfc pfe pff pfi pfk pfn pfp pfs pia pic pie pif pii pik pin pip pis pka pkc pke pkf pki pkn pkp pks pn- pna pnc pne pnf pni pnk pnn pnp pns ppa ppc ppe ppf ppi ppk ppn ppp pps ps- psa psc pse psf psi psk psn psp pss saa sac sae saf sai sak san sap sas sca scc sce scf sci sck scn scp scs se- sea sec see sef sei sek sen sep ses sfa sfc sfe sff sfi sfk sfn sfp sfs sia sic sie sif sii sik sin sip sis sk- ska skc ske skf ski skk skp sks sna snc sne snf sni snk snn snp sns spa spc spe spf spi spk spn spp sps ss- ssa ssc sse ssf ssi ssk ssn ssp sss