ddd ddf ddm ddo ddr ddt ddu dfd dff dfm dfo dfr dft dfu dmd dmf dmm dmo dmr dmt dmu dod dof dom doo dor dot dou drd drm dro drr drt dru dtd dtf dtm dto dtr dtt dtu dud duf dum duo dur dut fdd fdf fdm fdo fdr fdt fdu ffd fff ffm ffo ffr fft ffu fmd fmf fmm fmo fmr fmt fmu fof fom foo for fot fou frd frf frm fro frr frt fru ftd ftf ftm fto ftr ftt ftu fud fuf fum fuo fur fut fuu m-f m-o m-r mdd mdf mdm mdo mdr mdt mdu mfd mff mfm mfo mfr mft mfu mmd mmf mmm mmo mmr mmt mmu mod mof mom moo mor mot mou mrd mrf mrm mro mrr mrt mru mtd mtf mtm mto mtr mtt mtu mud muf mum mur mut muu odd odf odm odo odr odt odu of- ofd off ofm ofo ofr oft ofu om- omd omf omm omo omr omt omu oo- ood oof oom ooo oor oot or- ord orf orm oro orr ort oru ot- otd otf otm oto otr ott otu ou- oud ouf oum ouo our out rdd rdf rdm rdo rdr rdt rdu rfd rff rfm rfo rfr rft rfu rmd rmf rmm rmo rmr rmt rod rof rom roo ror rot rou rrd rrf rrm rrr rrt rru rtd rtf rtm rto rtr rtt rtu rud ruf rum ruo rur rut ruu tdd tdf tdm tdo tdr tdt tdu tfd tff tfm tfo tfr tft tfu tmd tmf tmm tmo tmr tmt tmu to- tod tof tom too tor tot tou trd trf trm tro trr trt tru ttd ttf ttm tto ttr ttt ttu tud tuf tum tuo tur tut tuu udd udf udm udo udr udt udu ufd uff ufm ufo ufr uft ufu um- umd umf umm umo umr umt umu uod uom uoo uor uot ur- urd urf urm uro urr urt uru utd utf utm uto utr utt utu uum uur uut uuu