-ic c-- ccc cci cck cco ccs ccu ci- cic cii cik cio cis ciu ckc cki cko cks co- coc coi cok coo cos cou csc csi csk cso css csu cuc cui cuk cuo cus cuu icc ici ick ico ics icu iic iii iio iis iiu ikc iki ikk iko iks iku io- ioc ioi ioo ios iou is- isc isi isk iso iss isu iu- iuc iui ius kcc kci kck kcs kcu kic kii kik kio kis kiu kkc kki kkk kks kku koc koi kok koo kos kou ksc ksi ksk kso kss ksu kuc kui kuk kus kuu o-i oc- occ oci ock oco ocs ocu oic oii oik oio ois oiu okc oki okk oko oks oku oo- ooc ooi ook ooo oos os- osc osi osk oso oss osu ou- ouc oui ouk ouo ous scc sci sck sco scs scu sic sii sik sio sis siu sk- skc ski skk sko sks sku soc soi sok soo sos sou ss- ssc ssi ssk sso sss ssu suc sui suk suo sus suu ucc uci uck uco ucs ucu uic uii uio uis uiu ukc uki ukk uku uoc uok uoo uos usc usi usk uso uss usu uuc uus uuu