cccc cccf ccci ccfc ccff ccfi ccic ccii ccoc cfcf cfco cicc cici cico ciff ciii ciko ckck ckco ckfi ckoc ckoi ckoo cock coco cofc coff cofi coif cok- coko coof cook f--k fccf fcic fcii ffcc ffff ffii ficc fick fico fifc fiff fifi fifo fiii fiki foci fock foco fofo foki foof fook iccc iccf icci icco icoc ifco ific iiii iiio iioi iioo ikki ikko ikoo ioci iofc ioii ioio ioko ioof iooi iooo k-ci kccc kcci kcck kcfc kcfi kcfo kcic kcif kcii kckc kckf kckk kcko kcof kfcf kfco kfff kffk kfio kfok kfoo kicc kick kiff kiic kiii kiik kikc kikf kiki kikk kiko kioc kioi kiok kioo kkci kkck kkco kkfi kkic kkik kkkk kkoo kocf koci kock kofc koff kofi kofk kofo koii kokc kokf koki kokk koko kooc kooi kook kooo occc occi off- offc offo ofik oici oick oiii oiko okic okko okok ooff oooo