ddd ddm ddo ddr ddt ddy dmd dmm dmo dmr dmt dod dom doo dor dot doy drd drm dro drr drt dry dtd dtm dto dtr dtt dty dy- dyd dym dyo dyr dyy m-o m-r mdd mdm mdo mdr mdt mdy mmd mmm mmo mmr mmt mod mom moo mor mot moy mrd mrm mro mrr mrt mry mtd mtm mto mtr mtt my- myd mym myo myr myt odd odm odo odr odt om- omd omm omo omr omt omy oo- ood oom ooo oor oot or- ord orm oro orr ort ory ot- otd otm oto otr ott oyd oyo rdd rdm rdo rdr rdt rdy rmd rmm rmo rmr rmt rod rom roo ror rot roy rrd rrm rrr rrt rtd rtm rto rtr rtt rty ry- ryd rym ryo ryr ryy tdd tdm tdo tdr tdt tdy tmd tmm tmo tmr tmt tmy to- tod tom too tor tot toy trd trm tro trr trt try ttd ttm tto ttr ttt tty tyd tym tyo tyr tyt ydo ydt ydy ymm ymo ymt yod yom yoo yor yot yoy yro yrt ytd ytm yto ytr ytt yyt yyy