-er a-a a-b a-i a-t aaa aab aad aae aaf aai aam aao aar aat ab- aba abb abd abe abf abi abm abo abr abt ad- ada adb add ade adf adi adm ado adr adt aea aeb aed aee aef aei aem aeo aer aet af- afa afb afd afe aff afi afm afo afr aft ai- aia aib aid aie aif aii aim aio air ait ama amb amd ame amf ami amm amo amr amt aoa aob aod aoe aof aoi aom aoo aor aot ar- ara arb ard are arf ari arm aro arr art at- ata atb atd ate atf ati atm ato atr att baa bab bad bae baf bai bam bao bar bat bba bbb bbd bbe bbf bbi bbm bbo bbr bbt bda bdb bdd bde bdf bdi bdm bdo bdr bdt be- bea beb bed bee bef bei bem beo ber bet bfa bfb bfd bfe bff bfi bfm bfo bfr bft bi- bia bib bid bie bif bii bim bio bir bit bma bmb bmd bme bmf bmi bmm bmo bmr bmt boa bob bod boe bof boi bom boo bor bot bra brb brd bre brf bri brm bro brr brt bta btb btd bte btf bti btm bto btr btt daa dab dad dae daf dai dam dao dar dat dba dbb dbd dbe dbf dbi dbm dbo dbr dbt dda ddb ddd dde ddf ddi ddm ddo ddr ddt de- dea deb ded dee def dei dem deo der det dfa dfb dfd dfe dff dfi dfm dfo dfr dft di- dia dib did die dif dii dim dio dir dit dma dmb dmd dme dmf dmi dmm dmo dmr dmt doa dob dod doe dof doi dom doo dor dot dra drb drd dre dri drm dro drr drt dta dtb dtd dte dtf dti dtm dto dtr dtt eaa eab ead eae eaf eai eam eao ear eat eba ebb ebd ebe ebf ebi ebm ebo ebr ebt ed- eda edb edd ede edf edi edm edo edr edt eea eeb eed eee eef eem eeo eer eet ef- efa efb efd efe eff efi efm efo efr eft eia eib eid eie eif eii eim eio eir eit em- ema emb emd eme emf emi emm emo emr emt eo- eoa eob eod eoe eof eoi eom eoo eor eot era erb erd ere erf eri erm ero err ert eta etb etd ete etf eti etm eto etr ett faa fab fad fae faf fai fam fao far fat fba fbb fbd fbe fbf fbi fbm fbo fbr fbt fda fdb fdd fde fdf fdi fdm fdo fdr fdt fea feb fed fee fef fei fem feo fer fet ffa ffd ffe fff ffi ffm ffo ffr fft fia fib fid fie fif fii fim fir fit fma fmb fmd fme fmf fmi fmm fmo fmr fmt foa fob foe fof foi fom foo for fot fra frb frd fre frf fri frm fro frr frt fta ftb ftd fte ftf fti ftm fto ftr ftt i-d i-f ia- iaa iab iad iae iaf iai iam iao iar iat iba ibb ibd ibe ibf ibi ibm ibo ibr ibt ida idb idd ide idf idi idm ido idr idt ie- iea ied iee ief iei iem ier iet ifa ifb ifd ife iff ifi ifm ifo ifr ift iia iib iid iie iif iii iim iio iir iit im- ima imb imd ime imf imi imm imo imt io- ioa iob iod ioe iof ioi iom ioo ior iot ir- ira irb ird ire irf iri irm iro irr irt ita itb itd ite itf iti itm ito itt m-f m-o m-r maa mab mad mae maf mai mam mao mar mat mba mbb mbd mbe mbf mbi mbm mbo mbr mbt mda mdb mdd mde mdf mdi mdm mdo mdr mdt mea meb med mee mef mei mem meo mer met mfa mfb mfd mfe mff mfi mfm mfo mfr mft mi- mia mib mid mie mif mii mim mio mir mit mma mmb mmd mme mmf mmi mmm mmo mmr mmt moa mob mod moe mof moi mom moo mor mot mra mrb mrd mre mrf mri mrm mro mrr mrt mta mtb mtd mte mtf mti mtm mto mtr mtt o-i oaa oab oad oae oaf oai oam oao oar oat ob- oba obb obd obe obf obi obm obo obr obt oda odb odd ode odf odi odm odo odr odt oea oeb oed oee oef oei oem oeo oer oet of- ofa ofb ofd ofe off ofi ofm ofo ofr oft oia oib oid oie oif oii oim oio oir oit om- oma omb omd ome omf omi omm omo omr omt oo- ooa oob ood oof ooi oom ooo oor oot or- ora orb ord ore orf ori orm oro orr ort ot- ota otb otd ote otf oti otm oto otr ott ra- raa rab rad rae raf rai ram rao rar rat rba rbb rbd rbe rbf rbi rbm rbo rbr rbt rda rdb rdd rde rdf rdi rdm rdo rdr rdt re- rea reb red ree ref rei rem reo rer ret rfa rfb rfd rfe rff rfi rfm rfo rfr rft ria rib rid rie rif rii rim rio rir rit rma rmb rmd rme rmf rmi rmm rmo rmr rmt roa rob rod roe rof roi rom roo ror rot rra rrb rrd rrf rri rrm rrr rrt rta rtb rtd rte rtf rti rtm rto rtr rtt taa tab tad tae taf tai tam tao tar tat tba tbb tbd tbe tbf tbi tbm tbo tbr tbt tda tdb tdd tde tdf tdi tdm tdo tdr tdt te- tea teb ted tee tef tei tem teo ter tet tfa tfb tfd tfe tff tfi tfm tfo tfr tft tia tib tid tie tif tii tim tio tir tit tma tmb tmd tme tmf tmi tmm tmo tmr tmt to- toa