-er -ic -ol bbb bbc bbe bbf bbh bbi bbl bbo bbr bcb bcc bce bcf bch bci bcl bco bcr be- beb bec bee bef beh bei bel beo ber bfb bfc bfe bff bfh bfi bfl bfo bfr bhb bhc bhe bhf bhh bhi bhl bho bhr bi- bib bic bie bif bih bii bil bio bir blb blc ble blf blh bli bll blo blr bob boc boe bof boh boi bol boo bor brb bre brf brh bri brl bro brr c-- cbb cbc cbe cbf cbh cbi cbl cbo cbr ccb ccc cce ccf cch cci ccl cco ccr ce- ceb cec cee cef ceh cei cel ceo cer cfb cfc cfe cff cfh cfi cfl cfo cfr ch- chb chc che chf chh chi chl cho chr ci- cib cic cie cif cih cii cil cio cir cl- clb clc cle clf clh cli cll clo clr co- cob coc coe cof coh coi col coo cor crb crc cre crf crh cri crl cro crr ebb ebc ebe ebf ebh ebi ebl ebo ebr ec- ecb ecc ece ecf ech eci ecl eco ecr eeb eec eee eef eel eeo eer ef- efb efc efe eff efh efi efl efo efr ehb ehc ehe ehf ehh ehi ehl eho ehr eib eic eie eif eii eil eio eir elb elc ele elf elh eli ell elo elr eo- eob eoc eoe eof eoh eoi eol eoo eor erb erc ere erf erh eri erl ero err fbb fbc fbe fbf fbh fbi fbl fbo fbr fcb fcc fce fcf fci fcl fco fcr feb fec fee fef feh fei fel feo fer ffc ffe fff ffh ffi ffl ffo ffr fhb fhc fhe fhf fhh fhi fhl fho fhr fib fic fie fif fih fii fil fir flb flc fle flf fli fll flo flr fob foc foe fof foh foi fol foo for frb frc fre frf frh fri frl fro frr h-i hbb hbc hbe hbf hbh hbi hbl hbo hbr hcb hcc hce hcf hch hci hcl hco hcr he- heb hec hee hef heh hei hel heo her hfb hfc hfe hff hfh hfi hfl hfo hfr hhb hhc hhe hhf hhh hhi hhl hho hhr hib hic hie hif hih hii hil hio hir hlb hlc hle hlf hlh hli hll hlo hlr hob hoc hoe hof hoh hoi hol hoo hor hr- hrb hrc hre hrf hrh hri hrl hro hrr i-f ibb ibc ibe ibf ibh ibi ibl ibo ibr icb icc ice icf ich ici icl ico icr ie- iec iee ief iei iel ier ifb ifc ife iff ifi ifl ifo ifr ihb ihc ihe ihf ihh ihi ihl iho ihr iib iic iie iif iih iii iil iio iir il- ilb ilc ile ilf ilh ili ill ilo ilr io- iob ioc ioe iof ioh ioi iol ioo ior ir- irb irc ire irf iri irl iro irr lbb lbc lbe lbf lbh lbi lbl lbo lbr lcb lcc lce lcf lch lci lcl lco lcr leb lec lee lef leh lei lel leo ler lfb lfc lfe lff lfh lfi lfl lfo lfr lhb lhc lhf lhh lhi lho lhr lib lic lie lif lih lii lil lio lir llb llc lle llf lli lll llo llr lob loc loe lof loh loi lol loo lor lrb lrc lrf lrh lri lro lrr o-i ob- obb obc obe obf obh obi obl obo obr oc- ocb occ ocf och oci ocl oco ocr oeb oec oee oef oeh oei oel oeo oer of- ofb ofc ofe off ofi ofl ofo ofr ohc ohe ohf ohh ohi ohl oho ohr oib oic oie oif oii oil oio oir olb olc ole olf oli oll olo oo- oob ooc oof ooh ooi ool ooo oor or- orb orc ore orf orh ori orl oro orr rbb rbc rbe rbf rbh rbi rbl rbo rbr rcb rcc rce rcf rch rci rcl rco rcr re- reb rec ree ref reh rei rel reo rer rfb rfc rfe rff rfh rfi rfl rfo rfr rh- rhb rhc rhe rhf rhh rhi rhl rho rhr rib ric rie rif rih rii ril rio rir rlc rle rlf rlh rli rll rlo rlr rob roc roe rof roh roi rol roo ror rrb rrc rrf rrh rri rrl rrr