-ol c-- ccc ccd ccl cco ccr cct ccu cdc cdd cdl cdo cdr cdt cdu cl- clc cld cll clo clr clt clu co- coc cod col coo cor cot cou crc crd crl cro crr crt cru ctc ctd ctl cto ctr ctt ctu cuc cud cul cuo cur cut cuu dcc dcd dcl dco dcr dct dcu ddc ddd ddl ddo ddr ddt ddu dl- dlc dld dll dlo dlr dlt dlu doc dod dol doo dor dot dou drc drd drl dro drr drt dru dtc dtd dtl dto dtr dtt dtu duc dud dul duo dur dut lcc lcd lcl lco lcr lct lcu ldc ldd ldl ldo ldr ldt ldu llc lld lll llo llr llt llu loc lod lol loo lor lot lou lrc lrd lro lrr lrt lru ltc ltd ltl lto ltr ltt ltu luc lud lul luo lur lut luu oc- occ ocd ocl oco ocr oct ocu odc odd odl odo odr odt odu olc old oll olo olt olu oo- ooc ood ool ooo oor oot or- orc ord orl oro orr ort oru ot- otc otd otl oto otr ott otu ou- ouc oud oul ouo our out rcc rcd rcl rco rcr rct rcu rdc rdd rdl rdo rdr rdt rdu rlc rld rll rlo rlr rlt rlu roc rod rol roo ror rot rou rrc rrd rrl rrr rrt rru rtc rtd rtl rto rtr rtt rtu ruc rud ruo rur rut ruu tcc tcd tcl tco tcr tct tcu tdc tdd tdl tdo tdr tdt tdu tlc tld tll tlo tlr tlt tlu to- toc tod tol too tor tot tou trc trd trl tro trr trt tru ttc ttd ttl tto ttr ttt ttu tuc tud tul tuo tur tut tuu ucc ucd ucl uco ucr uct ucu udc udd udl udo udr udt udu ulc uld ull ulo ulr ult ulu uoc uod uol uoo uor uot ur- urc urd url uro urr urt uru utc utd utl uto utr utt utu uuc uur uut uuu