-er bbb bbe bbf bbi bbl bbr bbs bbt be- beb bee bef bei bel ber bes bet bfb bfe bff bfi bfl bfr bfs bft bi- bib bie bif bii bil bir bis bit blb ble blf bli bll blr bls blt brb bre brf bri brl brr brs brt bsb bse bsf bsi bsl bsr bss bst btb bte btf bti btl btr bts btt ebb ebe ebf ebi ebl ebr ebs ebt eeb eee eef eel eer ees eet ef- efb efe eff efi efl efr efs eft eib eie eif eii eil eir eis eit elb ele elf eli ell elr els elt erb ere erf eri erl err ers ert es- esb ese esf esi esl esr ess est etb ete etf eti etl etr ets ett fbb fbe fbf fbi fbl fbr fbs fbt feb fee fef fei fel fer fes fet ffe fff ffi ffl ffr ffs fft fib fie fif fii fil fir fis fit flb fle flf fli fll flr fls flt frb fre frf fri frl frr frs frt fsb fse fsf fsi fsl fsr fss fst ftb fte ftf fti ftl ftr fts ftt i-f ibb ibe ibf ibi ibl ibr ibs ibt ie- iee ief iei iel ier ies iet ifb ife iff ifi ifl ifr ifs ift iib iie iif iii iil iir iis iit il- ilb ile ilf ili ill ilr ils ilt ir- irb ire irf iri irl irr irs irt is- isb ise isf isi isl isr iss ist itb ite itf iti itl its itt lbb lbe lbf lbi lbl lbr lbs lbt leb lee lef lei lel ler les let lfb lfe lff lfi lfl lfr lfs lft lib lie lif lii lil lir lis lit llb lle llf lli lll llr lls llt lrb lrf lri lrr lrs lrt lsb lse lsf lsi lsl lsr lss lst ltb lte ltf lti ltl ltr lts ltt rbb rbe rbf rbi rbl rbr rbs rbt re- reb ree ref rei rel rer res ret rfb rfe rff rfi rfl rfr rfs rft rib rie rif rii ril rir ris rit rle rlf rli rll rlr rls rlt rrb rrf rri rrl rrr rrs rrt rsb rse rsf rsi rsl rsr rss rst rtb rte rtf rti rtl rtr rts rtt sbb sbe sbf sbi sbl sbr sbs sbt se- seb see sef sei sel ser ses set sfb sfe sff sfi sfl sfr sfs sft sib sie sif sii sil sir sis sit slb sle slf sli sll slr sls slt sr- srb sre srf sri srl srr srs srt ss- ssb sse ssf ssi ssl ssr sss sst stb ste stf sti stl str sts stt tbb tbe tbf tbi tbl tbr tbs tbt te- teb tee tef tei tel ter tes tet tfb tfe tff tfi tfl tfr tfs tft tib tie tif tii til tir tis tit tle tlf tli tll tlr tls tlt trb tre trf tri trl trr trs trt tsb tse tsf tsi tsl tsr tss tst ttb tte ttf tti ttl ttr tts ttt