-er bbb bbd bbe bbf bbg bbi bbo bbr bbs bbt bdb bdd bde bdf bdg bdi bdo bdr bds bdt be- beb bed bee bef beg bei beo ber bes bet bfb bfd bfe bff bfg bfi bfo bfr bfs bft bgb bgd bge bgf bgg bgi bgo bgr bgs bgt bi- bib bid bie bif big bii bio bir bis bit bob bod boe bof bog boi boo bor bos bot brb brd bre brf brg bri bro brr brs brt bsb bsd bse bsf bsg bsi bso bsr bss bst btb btd bte btf btg bti bto btr bts btt dbb dbd dbe dbf dbg dbi dbo dbr dbs dbt ddb ddd dde ddf ddg ddi ddo ddr dds ddt de- deb ded dee def deg dei deo der des det dfb dfd dfe dff dfg dfi dfo dfr dfs dft dgd dge dgf dgg dgi dgr dgs dgt di- dib did die dif dig dii dio dir dis dit dob dod doe dof dog doi doo dor dos dot drb drd dre drg dri dro drr drs drt dsb dsd dse dsf dsg dsi dso dsr dss dst dtb dtd dte dtf dtg dti dto dtr dts dtt ebb ebd ebe ebf ebg ebi ebo ebr ebs ebt ed- edb edd ede edf edg edi edo edr eds edt eeb eed eee eef eeg eeo eer ees eet ef- efb efd efe eff efg efi efo efr efs eft egb egd ege egf egg egi ego egr egs egt eib eid eie eif eig eii eio eir eis eit eo- eob eod eoe eof eog eoi eoo eor eos eot erb erd ere erf erg eri ero err ers ert es- esb esd ese esf esg esi eso esr ess est etb etd ete etf etg eti eto etr ets ett fbb fbd fbe fbf fbg fbi fbo fbr fbs fbt fdb fdd fde fdf fdg fdi fdo fdr fds fdt feb fed fee fef feg fei feo fer fes fet ffd ffe fff ffg ffi ffo ffr ffs fft fgb fgd fge fgf fgg fgi fgr fgs fgt fib fid fie fif fig fii fir fis fit fob foe fof fog foi foo for fos fot frb frd fre frf frg fri fro frr frs frt fsb fsd fse fsf fsg fsi fso fsr fss fst ftb ftd fte ftf ftg fti fto ftr fts ftt g-d gbd gbe gbf gbg gbi gbo gbr gbs gbt gdb gdd gde gdf gdi gdo gdr gds gdt ge- geb ged gee gef geg gei geo ger ges get gfb gfd gfe gff gfi gfo gfr gfs gft ggb ggd ggg ggi ggo ggr ggs ggt gib gid gie gif gig gii gio gir gis git gob god goe gof gog goi goo gor gos got grb grd gre grf grg gri gro grr grs grt gsb gsd gse gsf gsg gsi gso gsr gss gst gtb gtd gte gtf gtg gti gto gtr gts gtt i-d i-f ibb ibd ibe ibf ibg ibi ibo ibr ibs ibt idb idd ide idf idg idi ido idr ids idt ie- ied iee ief ieg iei ier ies iet ifb ifd ife iff ifg ifi ifo ifr ifs ift igb igd ige igf igg igi igo igr igs igt iib iid iie iif iii iio iir iis iit io- iob iod ioe iof iog ioi ioo ior ios iot ir- irb ird ire irf irg iri iro irr irs irt is- isb isd ise isf isg isi iso isr iss ist itb itd ite itf itg iti ito its itt o-i ob- obb obd obe obf obg obi obo obr obs obt odb odd ode odf odg odi odo odr ods odt oeb oed oee oef oeg oei oeo oer oes oet of- ofb ofd ofe off ofg ofi ofo ofr ofs oft ogd oge ogf ogg ogi ogo ogs ogt oib oid oie oif oii oio oir ois oit oo- oob ood oof oog ooi ooo oor oos oot or- orb ord ore orf org ori oro orr ors ort os- osb osd ose osf osg osi oso osr oss ost ot- otb otd ote otf otg oti oto otr ots ott rbb rbd rbe rbf rbg rbi rbo rbr rbs rbt rdb rdd rde rdf rdg rdi rdo rdr rds rdt re- reb red ree ref reg rei reo rer res ret rfb rfd rfe rff rfg rfi rfo rfr rfs rft rgb rgd rge rgf rgg rgi rgo rgr rgs rgt rib rid rie rif rig rii rio rir ris rit rob rod roe rof rog roi roo ror ros rot rrb rrd rrf rrg rri rrr rrs rrt rsb rsd rse rsf rsg rsi rso rsr rss rst rtb rtd rte rtf rtg rti rto rtr rts rtt sbb sbd sbe sbf sbg sbi sbo sbr sbs sbt sdb sdd sde sdf sdg sdi sdo sdr sds sdt se- seb sed see sef seg sei seo ser ses set sfb sfd sfe sff sfg sfi sfo sfr sfs sft sgb sgd sge sgf sgg sgi sgo sgr sgs sgt sib sid sie sif sig sii sio sir sis sit sob sod soe sof sog soi soo sor sos sot sr- srb srd sre srf srg sri sro srr srs srt ss- ssb ssd sse ssf ssg ssi sso ssr sss sst stb std ste stf stg sti sto str sts stt tbb tbd tbe tbf tbg tbi tbo tbr tbs tbt tdb tdd tde tdf tdg tdi tdo tdr tds tdt te- teb ted tee tef teg tei teo ter tes tet tfb tfd tfe tff tfg tfi tfo tfr tfs tft tgb tge tgf tgg tgi tgo tgr tgs tgt tib tid tie tif tig tii tio tir tis tit to- tob tod toe tof tog toi too tor tos tot trb trd tre trf trg tri tro trr trs trt tsb tsd tse tsf tsg tsi tso tsr tss tst ttb ttd tte ttf