iiii iiit iitr iitt init inni innr innu inp- inpi inpp inpt inri inti intn intp intr intu inui inun inup ipin ippr ipri ipur iput iri- irin irip irri irti irtp irun itin itri itup itur iuiu iupp n-ii n-up niip niir niit niiu nini nipr nipt nirt niru niti nitr niur nnit nnnn nnpi nnpr nntn npin npri nprt nptn nrpn ntnu ntru nttr ntui nuin nuit nunn nunt nuri nurn nurp nurr nurt nuru nutt nutu piip pini pinn pinp pint pinu pipi pipp piri pirn pirr piru piti pitr pitt pitu pnin pnpp pntr pnup pppn pppp ppru pptn pptt ppur pri- prii prin prnp prri prti prtp prtr prut pruu ptui puin puir puit puiu punt punu pupi pupu pur- puri purp purr puru put- puti putt putu riin rinn ripi ripp ripr ript riri riti ritt ritu rnin rnnt rntp rnut rpii rppn rptn rrrr rrun rttp ruin ruit runi runn runt rupp rupt ruri rurp ruru ruti rutt rutu ruun tiit tiiu tini tinn tint tinu tip- tipi tipp tipt tipu tiri tirr tiru titi titp titt titu tnut tpir tppp tppr tptp tptr tput tri- trin trip trit trpn trpp trtr trun trut truu tttt tuin tuit tuiu tuni tunn tunu tupi tupu turi turn turp turr turt turu tuti tutt tutu u-rp uint uipi uirr uni- unii unin unir unit unni unut upin upnp uppp uppu upri upup urin uriu urni urri urun urup urur urut utin utri utti uttu uuni uuri uuuu