-ol c-- ccc ccf cck ccl cco ccu cfc cff cfk cfl cfo cfu ckc cko cl- clc clf clk cll clo clu co- coc cof cok col coo cou cuc cuf cuk cul cuo cuu fcc fcf fck fcl fco fcu ffc fff ffk ffl ffo ffu fkc fkf fkk fkl flc flf fll flo flu foc fof fok fol foo fou fuf fuk ful fuo fuu kcc kck kcl kcu kfc kff kfo kfu kkc kkk kkl kku kl- klc klf klo klu koc kof kok kol koo kou kuc kuk kul kuu lcc lcf lck lcl lco lcu lfc lff lfk lfl lfo lfu lkl llc llf llk lll llo llu loc lof lok lol loo lou luc luf luk lul luo luu oc- occ ocf ock ocl oco ocu of- ofc off ofl ofo ofu okc okk okl oko oku olc olf olk oll olo olu oo- ooc oof ook ool ooo ou- ouc ouf ouk oul ouo ucc ucf uck ucl uco ucu ufc uff ufl ufo ufu ukc ukf ukk ukl uku ulc ulf ulk ull ulo ulu uoc uok uol uoo uuc uuu