-er a-a a-b a-i a-t aaa aab aad aae aag aai aam aao aar aas aat ab- aba abb abd abe abg abi abm abo abr abs abt ad- ada adb add ade adg adi adm ado adr ads adt aea aeb aed aee aeg aei aem aeo aer aes aet ag- aga agb agd age agg agi agm ago agr ags agt ai- aia aib aid aie aig aii aim aio air ais ait ama amb amd ame amg ami amm amo amr ams amt aoa aob aod aoe aog aoi aom aoo aor aos aot ar- ara arb ard are arg ari arm aro arr ars art as- asa asb asd ase asg asi asm aso asr ass ast at- ata atb atd ate atg ati atm ato atr ats att baa bab bad bae bag bai bam bao bar bas bat bba bbb bbd bbe bbg bbi bbm bbo bbr bbs bbt bda bdb bdd bde bdg bdi bdm bdo bdr bds bdt be- bea beb bed bee beg bei bem beo ber bes bet bga bgb bgd bge bgg bgi bgm bgo bgr bgs bgt bi- bia bib bid bie big bii bim bio bir bis bit bma bmb bmd bme bmg bmi bmm bmo bmr bms bmt boa bob bod boe bog boi bom boo bor bos bot bra brb brd bre brg bri brm bro brr brs brt bsa bsb bsd bse bsg bsi bsm bso bsr bss bst bta btb btd bte btg bti btm bto btr bts btt daa dab dad dae dag dai dam dao dar das dat dba dbb dbd dbe dbg dbi dbm dbo dbr dbs dbt dda ddb ddd dde ddg ddi ddm ddo ddr dds ddt de- dea deb ded dee deg dei dem deo der des det dga dgd dge dgg dgi dgm dgr dgs dgt di- dia dib did die dig dii dim dio dir dis dit dma dmb dmd dme dmg dmi dmm dmo dmr dms dmt doa dob dod doe dog doi dom doo dor dos dot dra drb drd dre drg dri drm dro drr drs drt dsa dsb dsd dse dsg dsi dsm dso dsr dss dst dta dtb dtd dte dtg dti dtm dto dtr dts dtt eaa eab ead eae eag eai eam eao ear eas eat eba ebb ebd ebe ebg ebi ebm ebo ebr ebs ebt ed- eda edb edd ede edg edi edm edo edr eds edt eea eeb eed eee eeg eem eeo eer ees eet ega egb egd ege egg egi egm ego egr egs egt eia eib eid eie eig eii eim eio eir eis eit em- ema emb emd eme emg emi emm emo emr ems emt eo- eoa eob eod eoe eog eoi eom eoo eor eos eot era erb erd ere erg eri erm ero err ers ert es- esa esb esd ese esg esi esm eso esr ess est eta etb etd ete etg eti etm eto etr ets ett g-d gaa gab gad gae gag gai gam gao gar gas gat gba gbd gbe gbg gbi gbm gbo gbr gbs gbt gda gdb gdd gde gdi gdm gdo gdr gds gdt ge- gea geb ged gee geg gei gem geo ger ges get gga ggb ggd ggg ggi ggm ggo ggr ggs ggt gia gib gid gie gig gii gim gio gir gis git gma gmb gmd gme gmg gmi gmm gmo gmr gms gmt goa gob god goe gog goi gom goo gor gos got gra grb grd gre grg gri grm gro grr grs grt gsa gsb gsd gse gsg gsi gsm gso gsr gss gst gta gtb gtd gte gtg gti gtm gto gtr gts gtt i-d ia- iaa iab iad iae iag iai iam iao iar ias iat iba ibb ibd ibe ibg ibi ibm ibo ibr ibs ibt ida idb idd ide idg idi idm ido idr ids idt ie- iea ied iee ieg iei iem ier ies iet iga igb igd ige igg igi igm igo igr igs igt iia iib iid iie iii iim iio iir iis iit im- ima imb imd ime img imi imm imo ims imt io- ioa iob iod ioe iog ioi iom ioo ior ios iot ir- ira irb ird ire irg iri irm iro irr irs irt is- isa isb isd ise isg isi ism iso isr iss ist ita itb itd ite itg iti itm ito its itt m-o m-r maa mab mad mae mag mai mam mao mar mas mat mba mbb mbd mbe mbg mbi mbm mbo mbr mbs mbt mda mdb mdd mde mdg mdi mdm mdo mdr mds mdt mea meb med mee meg mei mem meo mer mes met mga mgb mgd mge mgi mgm mgo mgr mgs mgt mi- mia mib mid mie mig mii mim mio mir mis mit mma mmb mmd mme mmg mmi mmm mmo mmr mms mmt moa mob mod moe mog moi mom moo mor mos mot mra mrb mrd mre mrg mri mrm mro mrr mrs mrt msa msb msd mse msg msi msm mso msr mss mst mta mtb mtd mte mtg mti mtm mto mtr mts mtt o-i oaa oab oad oae oag oai oam oao oar oas oat ob- oba obb obd obe obg obi obm obo obr obs obt oda odb odd ode odg odi odm odo odr ods odt oea oeb oed oee oeg oei oem oeo oer oes oet oga ogd oge ogg ogi ogo ogs ogt oia oib oid oie oii oim oio oir ois oit om- oma omb omd ome omg omi omm omo omr oms omt oo- ooa oob ood oog ooi oom ooo oor oos oot or- ora orb ord ore org ori orm oro orr ors ort os- osa osb osd ose osg osi osm oso osr oss ost ot- ota otb otd ote otg oti otm oto otr ots ott ra- raa rab rad rae rag rai ram rao rar