ffff ffii ffrr ffun fiff fifi fiii fiil fili fill filn fini finn firn fixx flii flin flix fluf flur flux fnuf fril frin frun fuff fufu fuil fuir fuli full fulu funf funx fur- furi furl furn furr fuxi fuxl ifil ifni ifnr ifrf ifri iiii ilin ilir ill- illi ilni ilxx infi infl inni innr innu inri inui inul inun irfu iri- iril irin irix irri irul irun iuiu ixil ixlu ixxi liff lifl lifx liii liin liir lili lill lilu linn linx liri lirl lirn lirr liru liuf liun lixi lixu llll lrif lrrr luff lufu luif luin luli lull lulu luni lunn luri luxi lxii lxxi lxxx n-ii nfff nfix niff niir niiu nili nill nilu nini ninl niru niur nixi nnnn nrrl nuff nufx nuin nuix nuli null nunn nuri nurl nurn nurr nuru rffl riff rifu riif riin rill rilu rinf rinn riri rlif rlin rnin rnli rrif rrrr rrun ruff ruif ruin rull runf runi runn ruri ruru ruun uirr ulli ullr ulul uni- unif unii unin unir unix unlf unni unrf urff urfi urif urin uriu urix urni urri urun urur uulu uuni uuri uuuu uxul x-fi xfin xiii xil- xili xill xinu xixi xlii xlix xuri xuxu xxii xxix xxxi xxxx