-er -ol bbb bbc bbd bbe bbf bbh bbl bbo bbr bcb bcc bcd bce bcf bch bcl bco bcr bdb bdc bdd bde bdf bdh bdl bdo bdr be- beb bec bed bee bef beh bel beo ber bfb bfc bfd bfe bff bfh bfl bfo bfr bhb bhc bhd bhe bhf bhh bhl bho bhr blb blc bld ble blf blh bll blo blr bob boc bod boe bof boh bol boo bor brb brd bre brf brh brl bro brr c-- cbb cbc cbd cbe cbf cbh cbl cbo cbr ccb ccc ccd cce ccf cch ccl cco ccr cdb cdc cdd cde cdf cdh cdl cdo cdr ce- ceb cec ced cee cef ceh cel ceo cer cfb cfc cfd cfe cff cfh cfl cfo cfr ch- chb chc chd che chf chh chl cho chr cl- clb clc cld cle clf clh cll clo clr co- cob coc cod coe cof coh col coo cor crb crc crd cre crf crh crl cro crr dbb dbc dbd dbe dbf dbh dbl dbo dbr dcb dcc dcd dce dcf dcl dco dcr ddb ddc ddd dde ddf ddh ddl ddo ddr de- deb dec ded dee def deh del deo der dfb dfc dfd dfe dff dfh dfl dfo dfr dh- dhb dhc dhd dhe dhf dhh dhl dho dhr dl- dlb dlc dld dle dlf dlh dll dlo dlr dob doc dod doe dof doh dol doo dor drb drc drd dre drl dro drr ebb ebc ebd ebe ebf ebh ebl ebo ebr ec- ecb ecc ecd ece ecf ech ecl eco ecr ed- edb edc edd ede edf edh edl edo edr eeb eec eed eee eef eel eeo eer ef- efb efc efd efe eff efh efl efo efr ehb ehc ehd ehe ehf ehh ehl eho ehr elb elc eld ele elf elh ell elo elr eo- eob eoc eod eoe eof eoh eol eoo eor erb erc erd ere erf erh erl ero err fbb fbc fbd fbe fbf fbh fbl fbo fbr fcb fcc fcd fce fcf fcl fco fcr fdb fdc fdd fde fdf fdh fdl fdo fdr feb fec fed fee fef feh fel feo fer ffc ffd ffe fff ffh ffl ffo ffr fhb fhc fhe fhf fhh fhl fho fhr flb flc fld fle flf fll flo flr fob foc foe fof foh fol foo for frb frc frd fre frf frh frl fro frr hbb hbc hbd hbe hbf hbh hbl hbo hbr hcb hcc hcd hce hcf hch hcl hco hcr hdb hdc hdd hde hdf hdh hdl hdo hdr he- heb hec hed hee hef heh hel heo her hfb hfc hfd hfe hff hfh hfl hfo hfr hhb hhc hhd hhe hhf hhh hhl hho hhr hlb hlc hld hle hlf hlh hll hlo hlr hob hoc hod hoe hof hoh hol hoo hor hr- hrb hrc hrd hre hrf hrh hrl hro hrr lbb lbc lbd lbe lbf lbh lbl lbo lbr lcb lcc lcd lce lcf lch lcl lco lcr ldb ldc ldd lde ldf ldh ldl ldo ldr leb lec led lee lef leh lel leo ler lfb lfc lfd lfe lff lfh lfl lfo lfr lhb lhc lhd lhf lhh lho lhr llb llc lld lle llf lll llo llr lob loc lod loe lof loh lol loo lor lrb lrc lrd lrf lrh lro lrr ob- obb obc obd obe obf obh obl obo obr oc- ocb occ ocd ocf och ocl oco ocr odb odc odd ode odf odh odl odo odr oeb oec oed oee oef oeh oel oeo oer of- ofb ofc ofd ofe off ofl ofo ofr ohc ohd ohe ohf ohh ohl oho ohr olb olc old ole olf oll olo oo- oob ooc ood oof ooh ool ooo oor or- orb orc ord ore orf orh orl oro orr rbb rbc rbd rbe rbf rbh rbl rbo rbr rcb rcc rcd rce rcf rch rcl rco rcr rdb rdc rdd rde rdf rdh rdl rdo rdr re- reb rec red ree ref reh rel reo rer rfb rfc rfd rfe rff rfh rfl rfo rfr rh- rhb rhc rhd rhe rhf rhh rhl rho rhr rlc rld rle rlf rlh rll rlo rlr rob roc rod roe rof roh rol roo ror rrb rrc rrd rrf rrh rrl rrr