dddd didi didu diii din- dini dinn dint dinu dird dirr dirt diti ditt dntt dnut drin drit drui drut druu dudd dudu duid duin duir duit dunn dunt duri durn durt duru duur duut idid idin idir idun iiii iiit iitr iitt ind- indi indu inid init inni innr innu inri intd inti intn intr intu inui inun iri- irid irin irri irti irun itin itri itur iuiu n-ii ndnt ndri ndut nidd nidi niir niit niiu nind nini nirt niru niti nitr niur nnit nnnn nntn nrrd ntnd ntnu ntru nttr ntui nudd nudi nuin nuit nunn nunt nurd nuri nurn nurr nurt nuru nutt nutu ridd ridi riin rind rinn riri riti ritt ritu rnin rnnt rntd rnut rrrr rrun rtdt rtnd rudd rudi ruid ruin ruit rund runi runn runt rurd ruri ruru ruti rutt rutu ruud ruun tdri tidd tiit tiiu tind tini tinn tint tinu tird tiri tirr tiru titi titt titu tndd tnut tri- trin trit trtr trud trun trut truu tttt tudi tudu tuin tuit tuiu tund tuni tunn tunu turd turi turn turr turt turu tuti tutt tutu uddi udid udin udir udun uint uirr undi uni- unii unin unir unit unni unut urdu urin uriu urni urri urun urur urut utid utin utri utti uttu uuni uuri uuuu