-ic c-- ccc cce cci cck cco ccs ce- cec cee cei cek ceo ces ci- cic cie cii cik cio cis ckc cki cko cks co- coc coe coi cok coo cos csc cse csi csk cso css ec- ecc ece eci eck eco ecs eec eee eek eeo ees eic eie eii eik eio eis ekc eke eki eko eks eo- eoc eoe eoi eok eoo eos es- esc ese esi esk eso ess icc ice ici ick ico ics ie- iec iee iei iek ies iic iie iii iio iis ikc ike iki ikk iko iks io- ioc ioe ioi ioo ios is- isc ise isi isk iso iss kcc kce kci kck kcs ke- kec kee kei kek keo kes kic kie kii kik kio kis kkc kke kki kkk kks koc koe koi kok koo kos ksc kse ksi ksk kso kss o-i oc- occ oci ock oco ocs oec oee oei oeo oes oic oie oii oik oio ois okc oke oki okk oko oks oo- ooc ooi ook ooo oos os- osc ose osi osk oso oss scc sce sci sck sco scs se- sec see sei sek seo ses sic sie sii sik sio sis sk- skc ske ski skk sko sks soc soe soi sok soo sos ss- ssc sse ssi ssk sso sss