-ol c-- ccc cce ccf ccl cco ccs ccu ce- cec cee cef cel ceo ces ceu cfc cfe cff cfl cfo cfs cfu cl- clc cle clf cll clo cls clu co- coc coe cof col coo cos cou csc cse csf csl cso css csu cuc cue cuf cul cuo cus cuu ec- ecc ece ecf ecl eco ecs ecu eec eee eef eel eeo ees ef- efc efe eff efl efo efs elc ele elf ell elo els elu eo- eoc eoe eof eol eoo eos eou es- esc ese esf esl eso ess esu eu- euc eue euf eul eus fcc fce fcf fcl fco fcs fcu fec fee fef fel feo fes feu ffc ffe fff ffl ffo ffs ffu flc fle flf fll flo fls flu foc foe fof fol foo fos fou fsc fse fsf fsl fso fss fsu fue fuf ful fuo fus fuu lcc lce lcf lcl lco lcs lcu lec lee lef lel leo les leu lfc lfe lff lfl lfo lfs lfu llc lle llf lll llo lls llu loc loe lof lol loo los lou lsc lse lsf lsl lso lss lsu luc lue luf lul luo lus luu oc- occ ocf ocl oco ocs ocu oec oee oef oel oeo oes of- ofc ofe off ofl ofo ofs ofu olc ole olf oll olo ols olu oo- ooc oof ool ooo oos os- osc ose osf osl oso oss osu ou- ouc oue ouf oul ouo ous scc sce scf scl sco scs scu se- sec see sef sel seo ses seu sfc sfe sff sfl sfo sfs sfu slc sle slf sll slo sls slu soc soe sof sol soo sos sou ss- ssc sse ssf ssl sso sss ssu suc sue suf sul suo sus suu ucc uce ucf ucl uco ucs ucu uec uee uef uel ues ufc ufe uff ufl ufo ufs ufu ulc ule ulf ull ulo uls ulu uoc uoe uol uoo uos usc use usf usl uso uss usu uuc uue uus uuu