ddd ddf ddn ddo dds ddt ddu dfd dff dfn dfo dfs dft dfu dnd dnf dnn dno dns dnt dod dof don doo dos dot dou dsd dsf dsn dso dss dst dsu dtd dtf dtn dto dts dtt dtu dud duf dun duo dus dut fdd fdf fdn fdo fds fdt fdu ffd fff ffn ffo ffs fft ffu fnd fnf fnn fns fnt fnu fof fon foo fos fot fou fsd fsf fsn fso fss fst fsu ftd ftf ftn fto fts ftt ftu fud fuf fun fuo fus fut fuu ndd ndf ndn ndo nds ndt ndu nfd nff nfn nfo nfs nft nfu nnf nnn nno nns nnt nnu no- nod nof non noo nos not nou nsd nsf nsn nso nss nst nsu ntd ntf ntn nto nts ntt ntu nud nun nuo nus nut nuu odd odf odn odo ods odt odu of- ofd off ofn ofo ofs oft ofu on- ond onf onn ono ons ont onu oo- ood oof oon ooo oos oot os- osd osf osn oso oss ost osu ot- otd otf otn oto ots ott otu ou- oud ouf oun ouo ous out sdd sdf sdn sdo sds sdt sdu sfd sff sfn sfo sfs sft sfu snd snf snn sno sns snt snu sod sof son soo sos sot sou ss- ssd ssf ssn sso sss sst ssu std stf stn sto sts stt stu sud suf sun suo sus sut suu tdd tdf tdn tdo tds tdt tdu tfd tff tfn tfo tfs tft tfu tnd tnf tnn tno tns tnt to- tod tof ton too tos tot tou tsd tsf tsn tso tss tst tsu ttd ttf ttn tto tts ttt ttu tud tuf tun tuo tus tut tuu udd udf udn udo uds udt udu ufd uff ufn ufo ufs uft ufu un- und unf unn uno uns unt unu uod uon uoo uos uot usd usf usn uso uss ust usu utd utf utn uto uts utt utu uun uus uut uuu