-ic a-a a-c a-i aaa aac aae aai aak aao aas aax ac- aca acc ace aci ack aco acs acx aea aec aee aei aek aeo aes aex ai- aia aic aie aii aik aio ais aix aka akc ake aki akk ako aks aoa aoc aoe aoi aok aoo aos aox as- asa asc ase asi ask aso ass asx ax- axa axe axi axk axo axs axx c-- caa cac cae cai cak cao cas cax cca ccc cce cci cck cco ccs ccx ce- cea cec cee cei cek ceo ces cex ci- cia cic cie cii cik cio cis cix cka ckc cki cko cks ckx co- coa coc coe coi cok coo cos cox csa csc cse csi csk cso css csx cxc cxi cxk cxo cxs cxx eaa eac eae eai eak eao eas eax ec- eca ecc ece eci eck eco ecs ecx eea eec eee eek eeo ees eex eia eic eie eii eik eio eis eix eka ekc eke eki eko eks eo- eoa eoc eoe eoi eok eoo eos es- esa esc ese esi esk eso ess esx ex- exa exc exe exi exo exs exx ia- iaa iac iae iai iao ias ica icc ice ici ick ico ics ie- iea iec iee iei iek ies iex iia iic iie iii iio iis iix ika ikc ike iki ikk iko iks ikx io- ioa ioc ioe ioi ioo ios is- isa isc ise isi isk iso iss ixc ixe ixi ka- kaa kac kae kai kak kao kas kax kca kcc kce kci kck kcs kcx ke- kea kec kee kei kek keo kes kex kia kic kie kii kik kio kis kix kkc kke kki kkk kks koa koc koe koi kok koo kos ksa ksc kse ksi ksk kso kss kxo o-i oaa oac oae oai oak oao oas oax oc- oca occ oci ock oco ocs ocx oea oec oee oei oeo oes oex oia oic oie oii oik oio ois oka okc oke oki okk oko oks oo- ooa ooc ooi ook ooo oos oox os- osa osc ose osi osk oso oss osx ox- oxa oxc oxi oxo oxx saa sac sae sai sak sao sas sax sca scc sce sci sck sco scs scx se- sea sec see sei sek seo ses sex sia sic sie sii sik sio sis six sk- ska skc ske ski skk sko sks skx soa soc soe soi sok soo sos sox ss- ssa ssc sse ssi ssk sso sss ssx sxc sxi sxs xaa xac xak xas xci xcx xee xes xex xia xic xie xii xio xis xix xke xks xoa xoc xoi xok xoo xos xox xsa xsc xsi xss xxi xxo xxx