-er a-a a-b a-i a-t aaa aab aad aae aag aai aak aan aao aar aat ab- aba abb abd abe abg abi abk abn abo abr abt ad- ada adb add ade adg adi adk adn ado adr adt aea aeb aed aee aeg aei aek aen aeo aer aet ag- aga agb agd age agg agi agk agn ago agr agt ai- aia aib aid aie aig aii aik ain aio air ait aka akb akd ake akg aki akk akn ako akr an- ana anb and ane ang ani ank ann ano anr ant aoa aob aod aoe aog aoi aok aon aoo aor aot ar- ara arb ard are arg ari ark arn aro arr art at- ata atb atd ate atg ati atn ato atr att baa bab bad bae bag bai bak ban bao bar bat bba bbb bbd bbe bbg bbi bbk bbn bbo bbr bbt bda bdb bdd bde bdg bdi bdk bdo bdr bdt be- bea beb bed bee beg bei bek ben beo ber bet bga bgb bgd bge bgg bgi bgk bgn bgo bgr bgt bi- bia bib bid bie big bii bik bin bio bir bit bka bkb bke bkg bkk bkn bko bkr bkt bna bnb bnd bne bng bni bnk bnn bno bnr bnt boa bob bod boe bog boi bok bon boo bor bot bra brb brd bre brg bri brk brn bro brr brt bta btb btd bte btg bti btk btn bto btr btt daa dab dad dae dag dai dak dan dao dar dat dba dbb dbd dbe dbg dbi dbk dbn dbo dbr dbt dda ddb ddd dde ddg ddi ddk ddn ddo ddr ddt de- dea deb ded dee deg dei dek den deo der det dga dgd dge dgg dgi dgk dgn dgr dgt di- dia dib did die dig dii dik din dio dir dit dka dkb dke dkg dki dkk dko dkr dkt dna dnb dnd dne dng dni dnk dnn dno dnr dnt doa dob dod doe dog doi dok don doo dor dot dra drb drd dre drg dri drk drn dro drr drt dta dtb dtd dte dtg dti dtk dtn dto dtr dtt eaa eab ead eae eag eai eak ean eao ear eat eba ebb ebd ebe ebg ebi ebk ebn ebo ebr ebt ed- eda edb edd ede edg edi edk edn edo edr edt eea eeb eed eee eeg eek een eeo eer eet ega egb egd ege egg egi egn ego egr egt eia eib eid eie eig eii eik ein eio eir eit eka ekb ekd eke ekg eki eko ekr ekt en- ena enb end ene eng eni enk enn eno enr ent eo- eoa eob eod eoe eog eoi eok eon eoo eor eot era erb erd ere erg eri erk ern ero err ert eta etb etd ete etg eti etk etn eto etr ett g-d gaa gab gad gae gag gai gak gan gao gar gat gba gbd gbe gbg gbi gbk gbn gbo gbr gbt gda gdb gdd gde gdi gdk gdn gdo gdr gdt ge- gea geb ged gee geg gei gek gen geo ger get gga ggb ggd ggg ggi ggn ggo ggr ggt gia gib gid gie gig gii gik gin gio gir git gka gkb gkd gkn gko gkt gna gnb gnd gne gni gnn gno gnr gnt goa gob god goe gog goi gok gon goo gor got gra grb grd gre grg gri grk grn gro grr grt gta gtb gtd gte gtg gti gtk gtn gto gtr gtt i-d ia- iaa iab iad iae iag iai ian iao iar iat iba ibb ibd ibe ibg ibi ibk ibn ibo ibr ibt ida idb idd ide idg idi idk idn ido idr idt ie- iea ied iee ieg iei iek ien ier iet iga igb igd ige igg igi igk ign igo igr igt iia iib iid iie iii iin iio iir iit ika ikb ike iki ikk iko ikr ikt in- ina inb ind ine ing ini ink inn ino inr int io- ioa iob iod ioe iog ioi ion ioo ior iot ir- ira irb ird ire irg iri irk irn iro irr irt ita itb itd ite itg iti itk itn ito itt k-t ka- kaa kab kad kae kag kai kak kan kao kar kat kba kbb kbd kbe kbi kbk kbn kbo kbr kda kdb kde kdg kdk kdo kdr kdt ke- kea keb ked kee keg kei kek ken keo ker ket kga kgb kgd kgi kgo kia kib kid kie kig kii kik kin kio kir kit kkb kke kki kkk kkn kkr kkt kn- kna knd kne kng kni knk knn kno knr knt koa kob kod koe kog koi kok kon koo kor kot kra krd krg kri krk krn kro krr krt kta ktb kte ktg ktk ktn kto ktr ktt n-i naa nab nad nae nag nai nak nan nao nar nat nba nbb nbd nbe nbg nbi nbk nbn nbo nbr nbt nda ndb ndd nde ndg ndi ndk ndn ndo ndr ndt ne- nea neb ned nee neg nei nek nen neo ner net nga ngb ngd nge ngg ngi ngk ngn ngo ngt nia nib nid nie nig nii nik nin nio nir nit nka nke nki nkk nkn nko nkr nkt nna nnb nne nng nni nnk nnn nno nnt no- noa nob nod noe nog noi nok non noo nor not nra nrb nrd nre nrg nri nrk nrn nro nrr nrt nta ntb ntd nte ntg nti ntk ntn nto ntr ntt o-i oaa oab oad oae oag oai oak oan oao oar oat ob- oba obb obd obe obg obi obk obn obo obr obt oda odb odd ode odg odi odn odo odr odt oea oeb oed oee oeg oei oen oeo oer oet oga ogd oge ogg ogi ogn ogo ogt oia oib oid oie oii oik