c-- ccc ccd ccm cco ccr cct cdc cdd cdm cdo cdr cdt cdy cmc cmd cmm cmo cmr cmt cmy co- coc cod com coo cor cot coy crc crd crm cro crr crt cry ctc ctd ctm cto ctr ctt cty cyc cyd cym cyo cyr cyt dcc dcd dcm dco dcr dct ddc ddd ddm ddo ddr ddt ddy dmc dmd dmm dmo dmr dmt doc dod dom doo dor dot doy drc drd drm dro drr drt dry dtc dtd dtm dto dtr dtt dty dy- dyc dyd dym dyo dyr dyy m-o m-r mc- mcc mcd mcm mco mcr mct mdc mdd mdm mdo mdr mdt mdy mmc mmd mmm mmo mmr mmt moc mod mom moo mor mot moy mrc mrd mrm mro mrr mrt mry mtc mtd mtm mto mtr mtt my- myc myd mym myo myr myt oc- occ ocd ocm oco ocr oct odc odd odm odo odr odt om- omc omd omm omo omr omt omy oo- ooc ood oom ooo oor oot or- orc ord orm oro orr ort ory ot- otc otd otm oto otr ott oyd oyo rcc rcd rcm rco rcr rct rdc rdd rdm rdo rdr rdt rdy rmc rmd rmm rmo rmr rmt roc rod rom roo ror rot roy rrc rrd rrm rrr rrt rtc rtd rtm rto rtr rtt rty ry- ryc ryd rym ryo ryr ryy tcc tcd tcm tco tcr tct tdc tdd tdm tdo tdr tdt tdy tmc tmd tmm tmo tmr tmt tmy to- toc tod tom too tor tot toy trc trd trm tro trr trt try ttc ttd ttm tto ttr ttt tty tyc tyd tym tyo tyr tyt ycc ycd yco ycy ydo ydt ydy ymc ymm ymo ymt yoc yod yom yoo yor yot yoy yrc yro yrt ytc ytd ytm yto ytr ytt yyc yyt yyy