dddd ddss ddts dfds dfdt dfrf dfri dftr dfts didi dids dif- diff difs diii diis din- dini dinn dins dint dird dirr dirs dirt dis- disd disi diss dist diti dits ditt dnis dntt drif drin drit drrs dsdr dsif dsri dsrr dssi dssn dsst dstn dsts dtss fdst fdti ffff ffii ffrr ffss fftf fidf fids fiff fifi fift fiii find fini finn fins fint firn firs fisd fisi fiss fist fiti fits fitt fndd fndn fndr fnrs frid frin fris frit frns frst fsfi fssf ftdi ftii ftrs ftsr idid idin idir idis idrf idsf idss idts ifid ifis ifit ifni ifnr ifns ifrf ifri iftn iiii iiis iiit iirs iisd iisi iisr iist iitr iitt ind- indi inds infi infs inid inis init inni innr inns inri inrs inss inst intd inti intn intr ints irds iri- irid irin iris irri irrs irsf irtf irti irts isdn isds isin isis isit isnt isri issf issi issr isss istd isti istr ists itif itin itis itrf itri itrs itsf itsi ittf n-ii ndfi ndnt ndrf ndri ndsf ndsi ndss nfff nfrs nfsr nidd nidi nids niff nift niir niit nind nini nins nirs nirt nisd nisi niss nist nitf niti nitr nits nnit nnnn nnss nntn nrds nrrd nrts nsdf nsds nsdt nsfs nsin nsis nsnr nsrd nssf nssr nsss nstd nsts ntds ntfs ntis ntnd ntsf ntss nttr rfdi rfds rfid ridd ridi rids riff rifs rift riif riin riis rind rinf rinn riri rirs risd risi riss rist riti rits ritt rndf rnds rnin rnnt rntd rrif rrrr rsdd rsds rsid rsis rsnn rsnr rsts rtdt rtnd rtns rtss rtts s-ii sdds sdif sdrs sdsf sdss sfnt sfss sfts sidd sidi sidr sids siff sifr sift siit sind sini sinn sins sint sirf siri sirr sirs sirt sisd sisi siss sist sit- sitd siti sitn sits sitt snid snir snit snns snrs snsd sntr srfi sris srni srnn srsd srtr ssdd ssdf ssid ssin ssis ssit ssns ssri ssrs sssf sssi ssss sstd ssts stds stfn stid stif stir stis stit stnd stnn stnr stns strd stri strn strs stsf stsi stss sttd sttr tdff tdis tdri tdss tfin tfrs tfsd tfsi tfss tidd tids tiff tift tiit tind tini tinn tins tint tird tiri tirr tirs tisi tiss tist titi tits titt tndd tndf tnts trfd trfr tri- trif trin tris trit trsd trsi trst trtr tsid tsin tsis tssf tssi tssr tsst tsts ttff ttfn ttss tttt