ffff ffii ffrr fftf fiff fifi fift fiii fini finn fint firn fiti fitt fitz fizz frin frit friz ftii fzzt ifit ifni ifnr ifrf ifri iftn iiii iiit iitr iitt infi init inni innr inri inti intn intr iri- irin irri irtf irti itif itin itrf itri ittf n-ii nfff niff nift niir niit nini nirt nitf niti nitr nitz nnit nnnn nntn nttr riff rift riif riin rinf rinn riri riti ritt ritz rizi rizz rnin rnnt rrif rrrr tfin tiff tift tiit tini tinn tint tiri tirr titi titt titz tizi tizz trfr tri- trif trin trit triz trtr ttff ttfn tttt tzzt ziff zift zinf zinn ziri ziti zizi zizz zrin zzzz