cccc ccci ccic ccii ccix ccoc ccxi cicc cici cico ciii ciko cixi ckck ckco ckcx ckoc ckoi ckoo cock coco coix cok- coko cook cxii cxix cxxi cxxx iccc icci icco icoc iiii iiio iioi iioo ikki ikko ikoo ioci ioii ioio ioko iooi iooo ixxi k-ci kc-x kccc kcci kcck kcic kcii kcix kckc kckk kcko kckx kcox kicc kick kicx kiic kiii kiik kiix kikc kiki kikk kiko kikx kioc kioi kiok kioo kixi kixk kixo kixx kkci kkck kkco kkic kkik kkix kkkk kkoo kkxk kkxx koci kock koii kokc koki kokk koko kokx kooc kooi kook kooo koxc kxci kxic kxii kxio kxix kxkc kxkk kxkx kxoi kxok kxoo kxox kxxi kxxk kxxo kxxx occc occi oici oick oiii oiko okic okko okok oooo oxi- oxic oxo- oxox oxxo xcii xico xiii xixi xoco xoxo xxii xxix xxxi xxxo xxxx