-er a-a a-b a-i a-t aaa aab aad aae aag aai aan aao aar aas aat ab- aba abb abd abe abg abi abn abo abr abs abt ad- ada adb add ade adg adi adn ado adr ads adt aea aeb aed aee aeg aei aen aeo aer aes aet ag- aga agb agd age agg agi agn ago agr ags agt ai- aia aib aid aie aig aii ain aio air ais ait an- ana anb and ane ang ani ann ano anr ans ant aoa aob aod aoe aog aoi aon aoo aor aos aot ar- ara arb ard are arg ari arn aro arr ars art as- asa asb asd ase asg asi asn aso asr ass ast at- ata atb atd ate atg ati atn ato atr ats att baa bab bad bae bag bai ban bao bar bas bat bba bbb bbd bbe bbg bbi bbn bbo bbr bbs bbt bda bdb bdd bde bdg bdi bdo bdr bds bdt be- bea beb bed bee beg bei ben beo ber bes bet bga bgb bgd bge bgg bgi bgn bgo bgr bgs bgt bi- bia bib bid bie big bii bin bio bir bis bit bna bnb bnd bne bng bni bnn bno bnr bns bnt boa bob bod boe bog boi bon boo bor bos bot bra brb brd bre brg bri brn bro brr brs brt bsa bsb bsd bse bsg bsi bsn bso bsr bss bst bta btb btd bte btg bti btn bto btr bts btt daa dab dad dae dag dai dan dao dar das dat dba dbb dbd dbe dbg dbi dbn dbo dbr dbs dbt dda ddb ddd dde ddg ddi ddn ddo ddr dds ddt de- dea deb ded dee deg dei den deo der des det dga dgd dge dgg dgi dgn dgr dgs dgt di- dia dib did die dig dii din dio dir dis dit dna dnb dnd dne dng dni dnn dno dnr dns dnt doa dob dod doe dog doi don doo dor dos dot dra drb drd dre drg dri drn dro drr drs drt dsa dsb dsd dse dsg dsi dsn dso dsr dss dst dta dtb dtd dte dtg dti dtn dto dtr dts dtt eaa eab ead eae eag eai ean eao ear eas eat eba ebb ebd ebe ebg ebi ebn ebo ebr ebs ebt ed- eda edb edd ede edg edi edn edo edr eds edt eea eeb eed eee eeg een eeo eer ees eet ega egb egd ege egg egi egn ego egr egs egt eia eib eid eie eig eii ein eio eir eis eit en- ena enb end ene eng eni enn eno enr ens ent eo- eoa eob eod eoe eog eoi eon eoo eor eos eot era erb erd ere erg eri ern ero err ers ert es- esa esb esd ese esg esi esn eso esr ess est eta etb etd ete etg eti etn eto etr ets ett g-d gaa gab gad gae gag gai gan gao gar gas gat gba gbd gbe gbg gbi gbn gbo gbr gbs gbt gda gdb gdd gde gdi gdn gdo gdr gds gdt ge- gea geb ged gee geg gei gen geo ger ges get gga ggb ggd ggg ggi ggn ggo ggr ggs ggt gia gib gid gie gig gii gin gio gir gis git gna gnb gnd gne gni gnn gno gnr gns gnt goa gob god goe gog goi gon goo gor gos got gra grb grd gre grg gri grn gro grr grs grt gsa gsb gsd gse gsg gsi gsn gso gsr gss gst gta gtb gtd gte gtg gti gtn gto gtr gts gtt i-d ia- iaa iab iad iae iag iai ian iao iar ias iat iba ibb ibd ibe ibg ibi ibn ibo ibr ibs ibt ida idb idd ide idg idi idn ido idr ids idt ie- iea ied iee ieg iei ien ier ies iet iga igb igd ige igg igi ign igo igr igs igt iia iib iid iie iii iin iio iir iis iit in- ina inb ind ine ing ini inn ino inr ins int io- ioa iob iod ioe iog ioi ion ioo ior ios iot ir- ira irb ird ire irg iri irn iro irr irs irt is- isa isb isd ise isg isi isn iso isr iss ist ita itb itd ite itg iti itn ito its itt n-i naa nab nad nae nag nai nan nao nar nas nat nba nbb nbd nbe nbg nbi nbn nbo nbr nbs nbt nda ndb ndd nde ndg ndi ndn ndo ndr nds ndt ne- nea neb ned nee neg nei nen neo ner nes net nga ngb ngd nge ngg ngi ngn ngo ngs ngt nia nib nid nie nig nii nin nio nir nis nit nna nnb nne nng nni nnn nno nns nnt no- noa nob nod noe nog noi non noo nor nos not nra nrb nrd nre nrg nri nrn nro nrr nrs nrt nsa nsb nsd nse nsg nsi nsn nso nsr nss nst nta ntb ntd nte ntg nti ntn nto ntr nts ntt o-i oaa oab oad oae oag oai oan oao oar oas oat ob- oba obb obd obe obg obi obn obo obr obs obt oda odb odd ode odg odi odn odo odr ods odt oea oeb oed oee oeg oei oen oeo oer oes oet oga ogd oge ogg ogi ogn ogo ogs ogt oia oib oid oie oii oin oio oir ois oit on- ona onb ond one ong oni onn ono onr ons ont oo- ooa oob ood oog ooi oon ooo oor oos oot or- ora orb ord ore org ori orn oro orr ors ort os- osa osb osd ose osg osi osn oso osr oss ost ot- ota otb otd ote otg oti otn oto otr ots ott ra- raa rab rad rae rag rai ran rao rar ras