ddd ddf ddg ddo dds ddt ddu dfd dff dfg dfo dfs dft dfu dgd dgf dgg dgs dgt dgu dod dof dog doo dos dot dou dsd dsf dsg dso dss dst dsu dtd dtf dtg dto dts dtt dtu dud duf dug duo dus dut fdd fdf fdg fdo fds fdt fdu ffd fff ffg ffo ffs fft ffu fgd fgf fgg fgs fgt fof fog foo fos fot fou fsd fsf fsg fso fss fst fsu ftd ftf ftg fto fts ftt ftu fud fuf fug fuo fus fut fuu g-d gdd gdf gdo gds gdt gdu gfd gff gfo gfs gft ggd ggg ggo ggs ggt ggu god gof gog goo gos got gou gsd gsf gsg gso gss gst gsu gtd gtf gtg gto gts gtt gtu gu- gud guf gug guo gus gut guu odd odf odg odo ods odt odu of- ofd off ofg ofo ofs oft ofu ogd ogf ogg ogo ogs ogt oo- ood oof oog ooo oos oot os- osd osf osg oso oss ost osu ot- otd otf otg oto ots ott otu ou- oud ouf ouo ous out sdd sdf sdg sdo sds sdt sdu sfd sff sfg sfo sfs sft sfu sgd sgf sgg sgo sgs sgt sgu sod sof sog soo sos sot sou ss- ssd ssf ssg sso sss sst ssu std stf stg sto sts stt stu sud suf sug suo sus sut suu tdd tdf tdg tdo tds tdt tdu tfd tff tfg tfo tfs tft tfu tgf tgg tgo tgs tgt tgu to- tod tof tog too tos tot tou tsd tsf tsg tso tss tst tsu ttd ttf ttg tto tts ttt ttu tud tuf tug tuo tus tut tuu udd udf udg udo uds udt udu ufd uff ufg ufo ufs uft ufu ugf ugg ugo ugs ugt ugu uod uog uoo uos uot usd usf usg uso uss ust usu utd utf uto uts utt utu uug uus uut uuu