-ic a-a a-c a-i aaa aac aai aak aan aao aap aas ac- aca acc aci ack acn aco acp acs ai- aia aic aii aik ain aio aip ais aka akc aki akk akn ako akp aks an- ana anc ani ank ann ano anp ans aoa aoc aoi aok aon aoo aop aos ap- apa apc api apk apn apo app aps as- asa asc asi ask asn aso asp ass c-- caa cac cai cak can cao cap cas cca ccc cci cck ccn cco ccp ccs ci- cia cic cii cik cin cio cip cis cka ckc cki cko cks cn- cna cnc cni cnn cno cnp cns co- coa coc coi cok con coo cop cos cpa cpc cpi cpk cpn cpo cpp cps csa csc csi csk csn cso csp css ia- iaa iac iai ian iao iap ias ica icc ici ick icn ico icp ics iia iic iii iin iio iip iis ika ikc iki ikk iko iks in- ina inc ini ink inn ino inp ins io- ioa ioc ioi ion ioo iop ios ipa ipc ipi ipn ipo ipp ips is- isa isc isi isk isn iso isp iss ka- kaa kac kai kak kan kao kap kas kca kcc kci kck kcn kcp kcs kia kic kii kik kin kio kip kis kkc kki kkk kkn kkp kks kn- kna knc kni knk knn kno knp koa koc koi kok kon koo kop kos kpa kpc kpi kpk kpn kpo kpp kps ksa ksc ksi ksk ksn kso ksp kss n-i naa nac nai nak nan nao nap nas nca ncc nci nck ncn nco ncp ncs nia nic nii nik nin nio nip nis nka nkc nki nkk nkn nko nkp nks nna nnc nni nnk nnn nno nnp nns no- noa noc noi nok non noo nop nos npa npc npi npn npo npp nps nsa nsc nsi nsk nsn nso nsp nss o-i oaa oac oai oak oan oao oap oas oc- oca occ oci ock ocn oco ocp ocs oia oic oii oik oin oio oip ois oka okc oki okk oko okp oks on- ona onc oni onk onn ono onp ons oo- ooa ooc ooi ook oon ooo oop oos op- opa opc opi opk opn opo opp ops os- osa osc osi osk osn oso osp oss p-p paa pac pai pak pan pao pap pas pca pcc pci pck pcn pco pcp pcs pia pic pii pik pin pio pip pis pka pkc pki pkn pko pkp pks pn- pna pnc pni pnk pnn pno pnp pns poa poc poi pok pon poo pop pos ppa ppc ppi ppk ppn ppo ppp pps ps- psa psc psi psk psn pso psp pss saa sac sai sak san sao sap sas sca scc sci sck scn sco scp scs sia sic sii sik sin sio sip sis sk- ska skc ski skk sko skp sks sna snc sni snk snn sno snp sns soa soc soi sok son soo sop sos spa spc spi spk spn spo spp sps ss- ssa ssc ssi ssk ssn sso ssp sss