-ly fff ffi ffl ffr ffs fft ffy fif fii fil fir fis fit flf fli fll flr fls flt fly frf fri frl frr frs frt fry fsf fsi fsl fsr fss fst ftf fti ftl ftr fts ftt fty fy- fyi i-f iff ifi ifl ifr ifs ift ify iif iii iil iir iis iit il- ilf ili ill ilr ils ilt ily ir- irf iri irl irr irs irt iry is- isf isi isl isr iss ist isy itf iti itl its itt ity iyr iys iyt iyy lff lfi lfl lfr lfs lft lif lii lil lir lis lit llf lli lll llr lls llt lly lrf lri lrr lrs lrt lry lsf lsi lsl lsr lss lst ltf lti ltl ltr lts ltt lyf lyl lyr lys lyt rff rfi rfl rfr rfs rft rif rii ril rir ris rit riy rlf rli rll rlr rls rlt rly rrf rri rrl rrr rrs rrt rsf rsi rsl rsr rss rst rtf rti rtl rtr rts rtt rty ry- ryf ryr rys ryy sff sfi sfl sfr sfs sft sif sii sil sir sis sit slf sli sll slr sls slt sly sr- srf sri srl srr srs srt sry ss- ssf ssi ssl ssr sss sst stf sti stl str sts stt sty sy- syi syl syr sys syt tff tfi tfl tfr tfs tft tif tii til tir tis tit tiy tlf tli tll tlr tls tlt trf tri trl trr trs trt try tsf tsi tsl tsr tss tst tsy ttf tti ttl ttr tts ttt tty tyf tyl tyr tys tyt yff yfr yfs yft yif yii yir yis yit yli yll ylr yls ylt yly yrf yrs yrt ysi ysl ysr yss yst ysy ytf ytl ytr yts ytt yyf yys yyt yyy