-ol c-- ccc ccd ccf ccl cco ccr ccu cdc cdd cdf cdl cdo cdr cdu cfc cfd cff cfl cfo cfr cfu cl- clc cld clf cll clo clr clu co- coc cod cof col coo cor cou crc crd crf crl cro crr cru cuc cud cuf cul cuo cur cuu dcc dcd dcf dcl dco dcr dcu ddc ddd ddf ddl ddo ddr ddu dfc dfd dff dfl dfo dfr dfu dl- dlc dld dlf dll dlo dlr dlu doc dod dof dol doo dor dou drc drd drl dro drr dru duc dud duf dul duo dur fcc fcd fcf fcl fco fcr fcu fdc fdd fdf fdl fdo fdr fdu ffc ffd fff ffl ffo ffr ffu flc fld flf fll flo flr flu foc fof fol foo for fou frc frd frf frl fro frr fru fud fuf ful fuo fur fuu lcc lcd lcf lcl lco lcr lcu ldc ldd ldf ldl ldo ldr ldu lfc lfd lff lfl lfo lfr lfu llc lld llf lll llo llr llu loc lod lof lol loo lor lou lrc lrd lrf lro lrr lru luc lud luf lul luo lur luu oc- occ ocd ocf ocl oco ocr ocu odc odd odf odl odo odr odu of- ofc ofd off ofl ofo ofr ofu olc old olf oll olo olu oo- ooc ood oof ool ooo oor or- orc ord orf orl oro orr oru ou- ouc oud ouf oul ouo our rcc rcd rcf rcl rco rcr rcu rdc rdd rdf rdl rdo rdr rdu rfc rfd rff rfl rfo rfr rfu rlc rld rlf rll rlo rlr rlu roc rod rof rol roo ror rou rrc rrd rrf rrl rrr rru ruc rud ruf ruo rur ruu ucc ucd ucf ucl uco ucr ucu udc udd udf udl udo udr udu ufc ufd uff ufl ufo ufr ufu ulc uld ulf ull ulo ulr ulu uoc uod uol uoo uor ur- urc urd urf url uro urr uru uuc uur uuu