ddd ddf ddk ddn ddo ddr dds ddt ddu dfd dff dfk dfn dfo dfr dfs dft dfu dkk dko dkr dks dkt dku dnd dnf dnk dnn dno dnr dns dnt dod dof dok don doo dor dos dot dou drd drk drn dro drr drs drt dru dsd dsf dsk dsn dso dsr dss dst dsu dtd dtf dtk dtn dto dtr dts dtt dtu dud duf duk dun duo dur dus dut fdd fdf fdk fdn fdo fdr fds fdt fdu ffd fff ffk ffn ffo ffr ffs fft ffu fkf fkk fkt fnd fnf fnk fnn fnr fns fnt fnu fof fok fon foo for fos fot fou frd frf frk frn fro frr frs frt fru fsd fsf fsk fsn fso fsr fss fst fsu ftd ftf ftk ftn fto ftr fts ftt ftu fud fuf fuk fun fuo fur fus fut fuu k-t kdf kdk kdo kdr kds kdt kdu kfd kff kfo kfs kfu kkk kkn kkr kks kkt kku kn- knd knf knk knn kno knr knt knu kod kof kok kon koo kor kos kot kou krd krf krk krn kro krr krs krt kru ksd ksf ksk ksn kso ksr kss kst ksu ktf ktk ktn kto ktr kts ktt ktu kud kuk kun kur kus kut kuu ndd ndf ndk ndn ndo ndr nds ndt ndu nfd nff nfk nfn nfo nfr nfs nft nfu nkf nkk nkn nko nkr nks nkt nku nnf nnk nnn nno nns nnt nnu no- nod nof nok non noo nor nos not nou nrd nrf nrk nrn nro nrr nrs nrt nru nsd nsf nsk nsn nso nsr nss nst nsu ntd ntf ntk ntn nto ntr nts ntt ntu nud nuk nun nuo nur nus nut nuu odd odf odn odo odr ods odt odu of- ofd off ofn ofo ofr ofs oft ofu okd okk oko okr oks oku on- ond onf onk onn ono onr ons ont onu oo- ood oof ook oon ooo oor oos oot or- ord orf ork orn oro orr ors ort oru os- osd osf osk osn oso osr oss ost osu ot- otd otf otk otn oto otr ots ott otu ou- oud ouf ouk oun ouo our ous out rdd rdf rdn rdo rdr rds rdt rdu rfd rff rfk rfn rfo rfr rfs rft rfu rkf rkk rko rks rkt rku rnd rnn rno rnr rns rnt rnu rod rof rok ron roo ror ros rot rou rrd rrf rrk rrn rrr rrs rrt rru rsd rsf rsk rsn rso rsr rss rst rsu rtd rtf rtk rtn rto rtr rts rtt rtu rud ruf ruk run ruo rur rus rut ruu sdd sdf sdk sdn sdo sdr sds sdt sdu sfd sff sfk sfn sfo sfr sfs sft sfu sk- skd skf skk sko skr sks skt sku snd snf snk snn sno snr sns snt snu sod sof sok son soo sor sos sot sou sr- srd srf srk srn sro srr srs srt ss- ssd ssf ssk ssn sso ssr sss sst ssu std stf stk stn sto str sts stt stu sud suf suk sun suo sur sus sut suu tdd tdf tdk tdn tdo tdr tds tdt tdu tfd tff tfk tfn tfo tfr tfs tft tfu tkk tko tkr tks tkt tnd tnf tnk tnn tno tnr tns tnt to- tod tof tok ton too tor tos tot tou trd trf trk trn tro trr trs trt tru tsd tsf tsk tsn tso tsr tss tst tsu ttd ttf ttk ttn tto ttr tts ttt ttu tud tuf tuk tun tuo tur tus tut tuu udd udf udk udn udo udr uds udt udu ufd uff ufn ufo ufr ufs uft ufu ukf ukk ukn ukr uku un- und unf unk unn uno unr uns unt unu uod uok uon uoo uor uos uot ur- urd urf urk urn uro urr urs urt uru usd usf usk usn uso usr uss ust usu utd utf utk utn uto utr uts utt utu uun uur uus uut uuu