-ol c-- ccc ccd cce ccf cck ccl cco ccu cdc cdd cde cdf cdk cdl cdo cdu ce- cec ced cee cef cek cel ceo ceu cfc cfd cfe cff cfk cfl cfo cfu ckc ckd cko cl- clc cld cle clf clk cll clo clu co- coc cod coe cof cok col coo cou cuc cud cue cuf cuk cul cuo cuu dcc dcd dce dcf dck dcl dco dcu ddc ddd dde ddf ddk ddl ddo ddu de- dec ded dee def dek del deo deu dfc dfd dfe dff dfk dfl dfo dfu dkc dke dkk dkl dko dku dl- dlc dld dle dlf dlk dll dlo dlu doc dod doe dof dok dol doo dou duc dud due duf duk dul duo ec- ecc ecd ece ecf eck ecl eco ecu ed- edc edd ede edf edk edl edo edu eec eed eee eef eek eel eeo ef- efc efd efe eff efl efo ekc ekd eke ekf ekl eko eku elc eld ele elf elk ell elo elu eo- eoc eod eoe eof eok eol eoo eou eu- euc eud eue euf eul fcc fcd fce fcf fck fcl fco fcu fdc fdd fde fdf fdk fdl fdo fdu fec fed fee fef fek fel feo feu ffc ffd ffe fff ffk ffl ffo ffu fkc fkf fkk fkl flc fld fle flf fll flo flu foc foe fof fok fol foo fou fud fue fuf fuk ful fuo fuu kcc kcd kce kck kcl kcu kdc kde kdf kdk kdl kdo kdu ke- kec ked kee kef kek kel keo kfc kfd kff kfo kfu kkc kke kkk kkl kku kl- klc kld klf klo klu koc kod koe kof kok kol koo kou kuc kud kue kuk kul kuu lcc lcd lce lcf lck lcl lco lcu ldc ldd lde ldf ldk ldl ldo ldu lec led lee lef lek lel leo leu lfc lfd lfe lff lfk lfl lfo lfu lkl llc lld lle llf llk lll llo llu loc lod loe lof lok lol loo lou luc lud lue luf luk lul luo luu oc- occ ocd ocf ock ocl oco ocu odc odd ode odf odl odo odu oec oed oee oef oel oeo of- ofc ofd ofe off ofl ofo ofu okc okd oke okk okl oko oku olc old ole olf olk oll olo olu oo- ooc ood oof ook ool ooo ou- ouc oud oue ouf ouk oul ouo ucc ucd uce ucf uck ucl uco ucu udc udd ude udf udk udl udo udu uec ued uee uef uel ufc ufd ufe uff ufl ufo ufu ukc uke ukf ukk ukl uku ulc uld ule ulf ulk ull ulo ulu uoc uod uoe uok uol uoo uuc uue uuu