c-- ccc ccm cco ccr cct ccu cmc cmm cmo cmr cmt cmu co- coc com coo cor cot cou crc crm cro crr crt cru ctc ctm cto ctr ctt ctu cuc cum cuo cur cut cuu m-o m-r mc- mcc mcm mco mcr mct mcu mmc mmm mmo mmr mmt mmu moc mom moo mor mot mou mrc mrm mro mrr mrt mru mtc mtm mto mtr mtt mtu muc mum mur mut muu oc- occ ocm oco ocr oct ocu om- omc omm omo omr omt omu oo- ooc oom ooo oor oot or- orc orm oro orr ort oru ot- otc otm oto otr ott otu ou- ouc oum ouo our out rcc rcm rco rcr rct rcu rmc rmm rmo rmr rmt roc rom roo ror rot rou rrc rrm rrr rrt rru rtc rtm rto rtr rtt rtu ruc rum ruo rur rut ruu tcc tcm tco tcr tct tcu tmc tmm tmo tmr tmt tmu to- toc tom too tor tot tou trc trm tro trr trt tru ttc ttm tto ttr ttt ttu tuc tum tuo tur tut tuu ucc ucm uco ucr uct ucu um- umc umm umo umr umt umu uoc uom uoo uor uot ur- urc urm uro urr urt uru utc utm uto utr utt utu uuc uum uur uut uuu