-er -ol bbb bbc bbd bbe bbf bbh bbl bbo bbr bbs bcb bcc bcd bce bcf bch bcl bco bcr bcs bdb bdc bdd bde bdf bdh bdl bdo bdr bds be- beb bec bed bee bef beh bel beo ber bes bfb bfc bfd bfe bff bfh bfl bfo bfr bfs bhb bhc bhd bhe bhf bhh bhl bho bhr bhs blb blc bld ble blf blh bll blo blr bls bob boc bod boe bof boh bol boo bor bos brb brd bre brf brh brl bro brr brs bsb bsc bsd bse bsf bsh bsl bso bsr bss c-- cbb cbc cbd cbe cbf cbh cbl cbo cbr cbs ccb ccc ccd cce ccf cch ccl cco ccr ccs cdb cdc cdd cde cdf cdh cdl cdo cdr cds ce- ceb cec ced cee cef ceh cel ceo cer ces cfb cfc cfd cfe cff cfh cfl cfo cfr cfs ch- chb chc chd che chf chh chl cho chr chs cl- clb clc cld cle clf clh cll clo clr cls co- cob coc cod coe cof coh col coo cor cos crb crc crd cre crf crh crl cro crr crs csb csc csd cse csf csh csl cso csr css dbb dbc dbd dbe dbf dbh dbl dbo dbr dbs dcb dcc dcd dce dcf dcl dco dcr dcs ddb ddc ddd dde ddf ddh ddl ddo ddr dds de- deb dec ded dee def deh del deo der des dfb dfc dfd dfe dff dfh dfl dfo dfr dfs dh- dhb dhc dhd dhe dhf dhh dhl dho dhr dhs dl- dlb dlc dld dle dlf dlh dll dlo dlr dls dob doc dod doe dof doh dol doo dor dos drb drc drd dre drl dro drr drs dsb dsc dsd dse dsf dsh dsl dso dsr dss ebb ebc ebd ebe ebf ebh ebl ebo ebr ebs ec- ecb ecc ecd ece ecf ech ecl eco ecr ecs ed- edb edc edd ede edf edh edl edo edr eds eeb eec eed eee eef eel eeo eer ees ef- efb efc efd efe eff efh efl efo efr efs ehb ehc ehd ehe ehf ehh ehl eho ehr ehs elb elc eld ele elf elh ell elo elr els eo- eob eoc eod eoe eof eoh eol eoo eor eos erb erc erd ere erf erh erl ero err ers es- esb esc esd ese esf esh esl eso esr ess fbb fbc fbd fbe fbf fbh fbl fbo fbr fbs fcb fcc fcd fce fcf fcl fco fcr fcs fdb fdc fdd fde fdf fdh fdl fdo fdr fds feb fec fed fee fef feh fel feo fer fes ffc ffd ffe fff ffh ffl ffo ffr ffs fhb fhc fhe fhf fhh fhl fho fhr fhs flb flc fld fle flf fll flo flr fls fob foc foe fof foh fol foo for fos frb frc frd fre frf frh frl fro frr frs fsb fsc fsd fse fsf fsh fsl fso fsr fss hbb hbc hbd hbe hbf hbh hbl hbo hbr hbs hcb hcc hcd hce hcf hch hcl hco hcr hcs hdb hdc hdd hde hdf hdh hdl hdo hdr hds he- heb hec hed hee hef heh hel heo her hes hfb hfc hfd hfe hff hfh hfl hfo hfr hfs hhb hhc hhd hhe hhf hhh hhl hho hhr hhs hlb hlc hld hle hlf hlh hll hlo hlr hls hob hoc hod hoe hof hoh hol hoo hor hos hr- hrb hrc hrd hre hrf hrh hrl hro hrr hrs hsb hsc hsd hse hsf hsh hsl hsr hss lbb lbc lbd lbe lbf lbh lbl lbo lbr lbs lcb lcc lcd lce lcf lch lcl lco lcr lcs ldb ldc ldd lde ldf ldh ldl ldo ldr lds leb lec led lee lef leh lel leo ler les lfb lfc lfd lfe lff lfh lfl lfo lfr lfs lhb lhc lhd lhf lhh lho lhr lhs llb llc lld lle llf lll llo llr lls lob loc lod loe lof loh lol loo lor los lrb lrc lrd lrf lrh lro lrr lrs lsb lsc lsd lse lsf lsh lsl lso lsr lss ob- obb obc obd obe obf obh obl obo obr obs oc- ocb occ ocd ocf och ocl oco ocr ocs odb odc odd ode odf odh odl odo odr ods oeb oec oed oee oef oeh oel oeo oer oes of- ofb ofc ofd ofe off ofl ofo ofr ofs ohc ohd ohe ohf ohh ohl oho ohr ohs olb olc old ole olf oll olo ols oo- oob ooc ood oof ooh ool ooo oor oos or- orb orc ord ore orf orh orl oro orr ors os- osb osc osd ose osf osh osl oso osr oss rbb rbc rbd rbe rbf rbh rbl rbo rbr rbs rcb rcc rcd rce rcf rch rcl rco rcr rcs rdb rdc rdd rde rdf rdh rdl rdo rdr rds re- reb rec red ree ref reh rel reo rer res rfb rfc rfd rfe rff rfh rfl rfo rfr rfs rh- rhb rhc rhd rhe rhf rhh rhl rho rhr rhs rlc rld rle rlf rlh rll rlo rlr rls rob roc rod roe rof roh rol roo ror ros rrb rrc rrd rrf rrh rrl rrr rrs rsb rsc rsd rse rsf rsh rsl rso rsr rss sbb sbc sbd sbe sbf sbh sbl sbo sbr sbs scb scc scd sce scf sch scl sco scr scs sdb sdc sdd sde sdf sdh sdl sdo sdr sds se- seb sec sed see sef seh sel seo ser ses sfb sfc sfd sfe sff sfh sfl sfo sfr sfs sh- shb shc shd she shf shh shl sho shr shs slb slc sld sle slf slh sll slo slr sls sob soc sod soe sof soh sol soo sor sos sr- srb src srd sre srf srh srl sro srr srs ss- ssb ssc ssd sse ssf