ffff ffii ffrr fftf fiff fifi fift fiii fini finn finp fint fipp firn fiti fitt fpin fprf frin frip frit ftii ifit ifni ifnr ifrf ifri iftn iiii iiit iipf iitr iitt infi infp init inni innr inp- inpi inpp inpt inri inti intn intp intr ipin ippf ippr ipri iri- irin irip irri irtf irti irtp itif itin itrf itri ittf n-ii nfff nfip niff nift niip niir niit nini nipr nipt nirt nitf niti nitr nnit nnnn nnpi nnpr nntn npif npin npri nprt nptn nrpn ntfp nttr pfff pffr pfft pfit piff piip pini pinn pinp pint pipi pipp piri pirn pirr pitf piti pitr pitt pnin pnpp pntr ppif pppn pppp pprf pptn pptt pri- prif prii prin prnp prri prti prtp prtr ptrf riff rift riif riin rinf rinn ripi ripp ripr ript riri riti ritt rnin rnnt rntp rpii rppn rptn rrif rrrr rttp tfin tfnp tfpt tftp tiff tift tiit tini tinn tint tip- tipi tipp tipt tiri tirr titi titp titt tpir tppp tppr tptp tptr trfr tri- trif trin trip trit trpn trpp trtr ttff ttfn tttt