-ol c-- ccc ccf ccl cco ccs ccu cfc cff cfl cfo cfs cfu cl- clc clf cll clo cls clu co- coc cof col coo cos cou csc csf csl cso css csu cuc cuf cul cuo cus cuu fcc fcf fcl fco fcs fcu ffc fff ffl ffo ffs ffu flc flf fll flo fls flu foc fof fol foo fos fou fsc fsf fsl fso fss fsu fuf ful fuo fus fuu lcc lcf lcl lco lcs lcu lfc lff lfl lfo lfs lfu llc llf lll llo lls llu loc lof lol loo los lou lsc lsf lsl lso lss lsu luc luf lul luo lus luu oc- occ ocf ocl oco ocs ocu of- ofc off ofl ofo ofs ofu olc olf oll olo ols olu oo- ooc oof ool ooo oos os- osc osf osl oso oss osu ou- ouc ouf oul ouo ous scc scf scl sco scs scu sfc sff sfl sfo sfs sfu slc slf sll slo sls slu soc sof sol soo sos sou ss- ssc ssf ssl sso sss ssu suc suf sul suo sus suu ucc ucf ucl uco ucs ucu ufc uff ufl ufo ufs ufu ulc ulf ull ulo uls ulu uoc uol uoo uos usc usf usl uso uss usu uuc uus uuu