dddd dfdt dfrf dfri dftr didi dif- diff diii dird dirr dirt dith diti ditt drif drih drit dthd fdti ffff ffii ffrr fftf fhit fidf fiff fifi fift fiii fiti fitt frid frit ftdi ftii h-ii hdif hdri hdtt hhhh hidi hiff hifh hifi hifr hihi hiht hiit hird hirf hiri hirt hiti hitt hrid hrit httr idid idir idrf ifht ifid ifit ifrf ifri ihdr ihit ihrd iiht iiii iiit iitr iitt iri- irid irri irtf irti itif itrf itri ittf rfdi rfid ridd ridi riff rift riht riif riri rith riti ritt rrif rrrr rtdt tdff tdri thdr thi- thif thir thri thtr tidd tiff tift tiht tiit tird tiri tirr tith titi titt trfd trfr tri- trif trit trtr ttff tttt