-er a-a a-b a-i a-t aaa aab aad aae aag aai aak aan aar aas aat ab- aba abb abd abe abg abi abk abn abr abs abt ad- ada adb add ade adg adi adk adn adr ads adt aea aeb aed aee aeg aei aek aen aer aes aet ag- aga agb agd age agg agi agk agn agr ags agt ai- aia aib aid aie aig aii aik ain air ais ait aka akb akd ake akg aki akk akn akr aks an- ana anb and ane ang ani ank ann anr ans ant ar- ara arb ard are arg ari ark arn arr ars art as- asa asb asd ase asg asi ask asn asr ass ast at- ata atb atd ate atg ati atn atr ats att baa bab bad bae bag bai bak ban bar bas bat bba bbb bbd bbe bbg bbi bbk bbn bbr bbs bbt bda bdb bdd bde bdg bdi bdk bdr bds bdt be- bea beb bed bee beg bei bek ben ber bes bet bga bgb bgd bge bgg bgi bgk bgn bgr bgs bgt bi- bia bib bid bie big bii bik bin bir bis bit bka bkb bke bkg bkk bkn bkr bks bkt bna bnb bnd bne bng bni bnk bnn bnr bns bnt bra brb brd bre brg bri brk brn brr brs brt bsa bsb bsd bse bsg bsi bsk bsn bsr bss bst bta btb btd bte btg bti btk btn btr bts btt daa dab dad dae dag dai dak dan dar das dat dba dbb dbd dbe dbg dbi dbk dbn dbr dbs dbt dda ddb ddd dde ddg ddi ddk ddn ddr dds ddt de- dea deb ded dee deg dei dek den der des det dga dgd dge dgg dgi dgk dgn dgr dgs dgt di- dia dib did die dig dii dik din dir dis dit dka dkb dke dkg dki dkk dkr dks dkt dna dnb dnd dne dng dni dnk dnn dnr dns dnt dra drb drd dre drg dri drk drn drr drs drt dsa dsb dsd dse dsg dsi dsk dsn dsr dss dst dta dtb dtd dte dtg dti dtk dtn dtr dts dtt eaa eab ead eae eag eai eak ean ear eas eat eba ebb ebd ebe ebg ebi ebk ebn ebr ebs ebt ed- eda edb edd ede edg edi edk edn edr eds edt eea eeb eed eee eeg eek een eer ees eet ega egb egd ege egg egi egn egr egs egt eia eib eid eie eig eii eik ein eir eis eit eka ekb ekd eke ekg eki ekr eks ekt en- ena enb end ene eng eni enk enn enr ens ent era erb erd ere erg eri erk ern err ers ert es- esa esb esd ese esg esi esk esn esr ess est eta etb etd ete etg eti etk etn etr ets ett g-d gaa gab gad gae gag gai gak gan gar gas gat gba gbd gbe gbg gbi gbk gbn gbr gbs gbt gda gdb gdd gde gdi gdk gdn gdr gds gdt ge- gea geb ged gee geg gei gek gen ger ges get gga ggb ggd ggg ggi ggn ggr ggs ggt gia gib gid gie gig gii gik gin gir gis git gka gkb gkd gkn gks gkt gna gnb gnd gne gni gnn gnr gns gnt gra grb grd gre grg gri grk grn grr grs grt gsa gsb gsd gse gsg gsi gsk gsn gsr gss gst gta gtb gtd gte gtg gti gtk gtn gtr gts gtt i-d ia- iaa iab iad iae iag iai ian iar ias iat iba ibb ibd ibe ibg ibi ibk ibn ibr ibs ibt ida idb idd ide idg idi idk idn idr ids idt ie- iea ied iee ieg iei iek ien ier ies iet iga igb igd ige igg igi igk ign igr igs igt iia iib iid iie iii iin iir iis iit ika ikb ike iki ikk ikr iks ikt in- ina inb ind ine ing ini ink inn inr ins int ir- ira irb ird ire irg iri irk irn irr irs irt is- isa isb isd ise isg isi isk isn isr iss ist ita itb itd ite itg iti itk itn its itt k-t ka- kaa kab kad kae kag kai kak kan kar kas kat kba kbb kbd kbe kbi kbk kbn kbr kbs kda kdb kde kdg kdk kdr kds kdt ke- kea keb ked kee keg kei kek ken ker kes ket kga kgb kgd kgi kgs kia kib kid kie kig kii kik kin kir kis kit kkb kke kki kkk kkn kkr kks kkt kn- kna knd kne kng kni knk knn knr knt kra krd krg kri krk krn krr krs krt ksa ksb ksd kse ksg ksi ksk ksn ksr kss kst kta ktb kte ktg ktk ktn ktr kts ktt n-i naa nab nad nae nag nai nak nan nar nas nat nba nbb nbd nbe nbg nbi nbk nbn nbr nbs nbt nda ndb ndd nde ndg ndi ndk ndn ndr nds ndt ne- nea neb ned nee neg nei nek nen ner nes net nga ngb ngd nge ngg ngi ngk ngn ngs ngt nia nib nid nie nig nii nik nin nir nis nit nka nke nki nkk nkn nkr nks nkt nna nnb nne nng nni nnk nnn nns nnt nra nrb nrd nre nrg nri nrk nrn nrr nrs nrt nsa nsb nsd nse nsg nsi nsk nsn nsr nss nst nta ntb ntd nte ntg nti ntk ntn ntr nts ntt ra- raa rab rad rae rag rai rak ran rar ras rat rba rbb rbd rbe rbg rbi rbk rbn rbr rbs rbt rda rdb rdd rde rdg rdi rdn rdr rds rdt re- rea reb red ree reg rei rek ren rer res ret rga rgb rgd rge rgg rgi rgk rgn rgr rgs