-ol c-- ccc ccd cce ccl cco ccu cdc cdd cde cdl cdo cdu ce- cec ced cee cel ceo ceu cl- clc cld cle cll clo clu co- coc cod coe col coo cou cuc cud cue cul cuo cuu dcc dcd dce dcl dco dcu ddc ddd dde ddl ddo ddu de- dec ded dee del deo deu dl- dlc dld dle dll dlo dlu doc dod doe dol doo dou duc dud due dul duo ec- ecc ecd ece ecl eco ecu ed- edc edd ede edl edo edu eec eed eee eel eeo elc eld ele ell elo elu eo- eoc eod eoe eol eoo eou eu- euc eud eue eul lcc lcd lce lcl lco lcu ldc ldd lde ldl ldo ldu lec led lee lel leo leu llc lld lle lll llo llu loc lod loe lol loo lou luc lud lue lul luo luu oc- occ ocd ocl oco ocu odc odd ode odl odo odu oec oed oee oel oeo olc old ole oll olo olu oo- ooc ood ool ooo ou- ouc oud oue oul ouo ucc ucd uce ucl uco ucu udc udd ude udl udo udu uec ued uee uel ulc uld ule ull ulo ulu uoc uod uoe uol uoo uuc uue uuu