-ol c-- ccc ccf cck ccl cco ccs ccu cfc cff cfk cfl cfo cfs cfu ckc cko cks cl- clc clf clk cll clo cls clu co- coc cof cok col coo cos cou csc csf csk csl cso css csu cuc cuf cuk cul cuo cus cuu fcc fcf fck fcl fco fcs fcu ffc fff ffk ffl ffo ffs ffu fkc fkf fkk fkl flc flf fll flo fls flu foc fof fok fol foo fos fou fsc fsf fsk fsl fso fss fsu fuf fuk ful fuo fus fuu kcc kck kcl kcs kcu kfc kff kfo kfs kfu kkc kkk kkl kks kku kl- klc klf klo kls klu koc kof kok kol koo kos kou ksc ksf ksk ksl kso kss ksu kuc kuk kul kus kuu lcc lcf lck lcl lco lcs lcu lfc lff lfk lfl lfo lfs lfu lkl lks llc llf llk lll llo lls llu loc lof lok lol loo los lou lsc lsf lsk lsl lso lss lsu luc luf luk lul luo lus luu oc- occ ocf ock ocl oco ocs ocu of- ofc off ofl ofo ofs ofu okc okk okl oko oks oku olc olf olk oll olo ols olu oo- ooc oof ook ool ooo oos os- osc osf osk osl oso oss osu ou- ouc ouf ouk oul ouo ous scc scf sck scl sco scs scu sfc sff sfk sfl sfo sfs sfu sk- skc skf skk skl sko sks sku slc slf slk sll slo sls slu soc sof sok sol soo sos sou ss- ssc ssf ssk ssl sso sss ssu suc suf suk sul suo sus suu ucc ucf uck ucl uco ucs ucu ufc uff ufl ufo ufs ufu ukc ukf ukk ukl uku ulc ulf ulk ull ulo uls ulu uoc uok uol uoo uos usc usf usk usl uso uss usu uuc uus uuu