-up fff ffi ffp ffr ffs fft ffu fif fii fip fir fis fit fiu fpi fpp fpr fps fpt fpu frf fri frp frr frs frt fru fsf fsi fsp fsr fss fst fsu ftf fti ftp ftr fts ftt ftu fuf fui fup fur fus fut fuu i-f iff ifi ifp ifr ifs ift ifu iif iii iip iir iis iit iiu ipf ipi ipp ipr ips ipt ipu ir- irf iri irp irr irs irt iru is- isf isi isp isr iss ist isu itf iti itp its itt itu iu- iui iup iur ius iut p-p pff pfi pfp pfr pfs pft pfu pif pii pip pir pis pit piu ppf ppi ppp ppr pps ppt ppu prf pri prp prr prs prt pru ps- psf psi psp psr pss pst psu pt- ptf pti ptp ptr pts ptt ptu puf pui pup pur pus put puu rff rfi rfp rfr rfs rft rfu rif rii rip rir ris rit rpf rpi rpp rpr rps rpt rpu rrf rri rrp rrr rrs rrt rru rsf rsi rsp rsr rss rst rsu rtf rti rtp rtr rts rtt rtu ruf rui rup rur rus rut ruu sff sfi sfp sfr sfs sft sfu sif sii sip sir sis sit siu spf spi spp spr sps spt spu sr- srf sri srp srr srs srt ss- ssf ssi ssp ssr sss sst ssu stf sti stp str sts stt stu suf sui sup sur sus sut suu tff tfi tfp tfr tfs tft tfu tif tii tip tir tis tit tiu tpf tpi tpp tpr tps tpt tpu trf tri trp trr trs trt tru tsf tsi tsp tsr tss tst tsu ttf tti ttp ttr tts ttt ttu tuf tui tup tur tus tut tuu uff ufi ufp ufr ufs uft ufu uif uii uip uir uis uit uiu up- upf upi upp upr ups upt upu ur- urf uri urp urr urs urt uru usf usi usp usr uss ust usu utf uti utp utr uts utt utu uur uus uut uuu