c-- ccc ccd ccm cco ccr ccu cdc cdd cdm cdo cdr cdu cmc cmd cmm cmo cmr cmu co- coc cod com coo cor cou crc crd crm cro crr cru cuc cud cum cuo cur cuu dcc dcd dcm dco dcr dcu ddc ddd ddm ddo ddr ddu dmc dmd dmm dmo dmr dmu doc dod dom doo dor dou drc drd drm dro drr dru duc dud dum duo dur m-o m-r mc- mcc mcd mcm mco mcr mcu mdc mdd mdm mdo mdr mdu mmc mmd mmm mmo mmr mmu moc mod mom moo mor mou mrc mrd mrm mro mrr mru muc mud mum mur muu oc- occ ocd ocm oco ocr ocu odc odd odm odo odr odu om- omc omd omm omo omr omu oo- ooc ood oom ooo oor or- orc ord orm oro orr oru ou- ouc oud oum ouo our rcc rcd rcm rco rcr rcu rdc rdd rdm rdo rdr rdu rmc rmd rmm rmo rmr roc rod rom roo ror rou rrc rrd rrm rrr rru ruc rud rum ruo rur ruu ucc ucd ucm uco ucr ucu udc udd udm udo udr udu um- umc umd umm umo umr umu uoc uod uom uoo uor ur- urc urd urm uro urr uru uuc uum uur uuu