c-- ccc ccd ccm ccr ccu cdc cdd cdm cdr cdu cdy cmc cmd cmm cmr cmu cmy crc crd crm crr cru cry cuc cud cum cur cuu cuy cyc cyd cym cyr dcc dcd dcm dcr dcu ddc ddd ddm ddr ddu ddy dmc dmd dmm dmr dmu drc drd drm drr dru dry duc dud dum dur duy dy- dyc dyd dym dyr dyu dyy m-r mc- mcc mcd mcm mcr mcu mdc mdd mdm mdr mdu mdy mmc mmd mmm mmr mmu mrc mrd mrm mrr mru mry muc mud mum mur muu muy my- myc myd mym myr myu rcc rcd rcm rcr rcu rdc rdd rdm rdr rdu rdy rmc rmd rmm rmr rrc rrd rrm rrr rru ruc rud rum rur ruu ruy ry- ryc ryd rym ryr ryu ryy ucc ucd ucm ucr ucu udc udd udm udr udu um- umc umd umm umr umu ur- urc urd urm urr uru ury uuc uum uur uuu uyc uyu ycc ycd ycu ycy ydy ymc ymm yrc yru yud yum yur yuu yuy yyc yyu yyy