fff ffi ffm ffr ffs fft ffu fif fii fim fir fis fit fiu fmf fmi fmm fmr fms fmt fmu frf fri frm frr frs frt fru fsf fsi fsm fsr fss fst fsu ftf fti ftm ftr fts ftt ftu fuf fui fum fur fus fut fuu i-f iff ifi ifm ifr ifs ift ifu iif iii iim iir iis iit iiu im- imf imi imm ims imt imu ir- irf iri irm irr irs irt iru is- isf isi ism isr iss ist isu itf iti itm its itt itu iu- iui ium iur ius iut m-f m-r mff mfi mfm mfr mfs mft mfu mi- mif mii mim mir mis mit miu mmf mmi mmm mmr mms mmt mmu mrf mri mrm mrr mrs mrt mru msf msi msm msr mss mst msu mtf mti mtm mtr mts mtt mtu muf mui mum mur mus mut muu rff rfi rfm rfr rfs rft rfu rif rii rim rir ris rit rmf rmi rmm rmr rms rmt rrf rri rrm rrr rrs rrt rru rsf rsi rsm rsr rss rst rsu rtf rti rtm rtr rts rtt rtu ruf rui rum rur rus rut ruu sff sfi sfm sfr sfs sft sfu sif sii sim sir sis sit siu smf smi smm smr sms smt smu sr- srf sri srm srr srs srt ss- ssf ssi ssm ssr sss sst ssu stf sti stm str sts stt stu suf sui sum sur sus sut suu tff tfi tfm tfr tfs tft tfu tif tii tim tir tis tit tiu tmf tmi tmm tmr tms tmt tmu trf tri trm trr trs trt tru tsf tsi tsm tsr tss tst tsu ttf tti ttm ttr tts ttt ttu tuf tui tum tur tus tut tuu uff ufi ufm ufr ufs uft ufu uif uii uim uir uis uit uiu um- umf umi umm umr ums umt umu ur- urf uri urm urr urs urt uru usf usi usm usr uss ust usu utf uti utm utr uts utt utu uum uur uus uut uuu