-ol c-- ccc ccd ccl cco cct ccu cdc cdd cdl cdo cdt cdu cl- clc cld cll clo clt clu co- coc cod col coo cot cou ctc ctd ctl cto ctt ctu cuc cud cul cuo cut cuu dcc dcd dcl dco dct dcu ddc ddd ddl ddo ddt ddu dl- dlc dld dll dlo dlt dlu doc dod dol doo dot dou dtc dtd dtl dto dtt dtu duc dud dul duo dut lcc lcd lcl lco lct lcu ldc ldd ldl ldo ldt ldu llc lld lll llo llt llu loc lod lol loo lot lou ltc ltd ltl lto ltt ltu luc lud lul luo lut luu oc- occ ocd ocl oco oct ocu odc odd odl odo odt odu olc old oll olo olt olu oo- ooc ood ool ooo oot ot- otc otd otl oto ott otu ou- ouc oud oul ouo out tcc tcd tcl tco tct tcu tdc tdd tdl tdo tdt tdu tlc tld tll tlo tlt tlu to- toc tod tol too tot tou ttc ttd ttl tto ttt ttu tuc tud tul tuo tut tuu ucc ucd ucl uco uct ucu udc udd udl udo udt udu ulc uld ull ulo ult ulu uoc uod uol uoo uot utc utd utl uto utt utu uuc uut uuu