a-a a-b a-i a-t aaa aab aad aae aai aan aao aas aat ab- aba abb abd abe abi abn abo abs abt ad- ada adb add ade adi adn ado ads adt aea aeb aed aee aei aen aeo aes aet ai- aia aib aid aie aii ain aio ais ait an- ana anb and ane ani ann ano ans ant aoa aob aod aoe aoi aon aoo aos aot as- asa asb asd ase asi asn aso ass ast at- ata atb atd ate ati atn ato ats att baa bab bad bae bai ban bao bas bat bba bbb bbd bbe bbi bbn bbo bbs bbt bda bdb bdd bde bdi bdo bds bdt be- bea beb bed bee bei ben beo bes bet bi- bia bib bid bie bii bin bio bis bit bna bnb bnd bne bni bnn bno bns bnt boa bob bod boe boi bon boo bos bot bsa bsb bsd bse bsi bsn bso bss bst bta btb btd bte bti btn bto bts btt daa dab dad dae dai dan dao das dat dba dbb dbd dbe dbi dbn dbo dbs dbt dda ddb ddd dde ddi ddn ddo dds ddt de- dea deb ded dee dei den deo des det di- dia dib did die dii din dio dis dit dna dnb dnd dne dni dnn dno dns dnt doa dob dod doe doi don doo dos dot dsa dsb dsd dse dsi dsn dso dss dst dta dtb dtd dte dti dtn dto dts dtt eaa eab ead eae eai ean eao eas eat eba ebb ebd ebe ebi ebn ebo ebs ebt ed- eda edb edd ede edi edn edo eds edt eea eeb eed eee een eeo ees eet eia eib eid eie eii ein eio eis eit en- ena enb end ene eni enn eno ens ent eo- eoa eob eod eoe eoi eon eoo eos eot es- esa esb esd ese esi esn eso ess est eta etb etd ete eti etn eto ets ett i-d ia- iaa iab iad iae iai ian iao ias iat iba ibb ibd ibe ibi ibn ibo ibs ibt ida idb idd ide idi idn ido ids idt ie- iea ied iee iei ien ies iet iia iib iid iie iii iin iio iis iit in- ina inb ind ine ini inn ino ins int io- ioa iob iod ioe ioi ion ioo ios iot is- isa isb isd ise isi isn iso iss ist ita itb itd ite iti itn ito its itt n-i naa nab nad nae nai nan nao nas nat nba nbb nbd nbe nbi nbn nbo nbs nbt nda ndb ndd nde ndi ndn ndo nds ndt ne- nea neb ned nee nei nen neo nes net nia nib nid nie nii nin nio nis nit nna nnb nne nni nnn nno nns nnt no- noa nob nod noe noi non noo nos not nsa nsb nsd nse nsi nsn nso nss nst nta ntb ntd nte nti ntn nto nts ntt o-i oaa oab oad oae oai oan oao oas oat ob- oba obb obd obe obi obn obo obs obt oda odb odd ode odi odn odo ods odt oea oeb oed oee oei oen oeo oes oet oia oib oid oie oii oin oio ois oit on- ona onb ond one oni onn ono ons ont oo- ooa oob ood ooi oon ooo oos oot os- osa osb osd ose osi osn oso oss ost ot- ota otb otd ote oti otn oto ots ott saa sab sad sae sai san sao sas sat sba sbb sbd sbe sbi sbn sbo sbs sbt sda sdb sdd sde sdi sdn sdo sds sdt se- sea seb sed see sei sen seo ses set sia sib sid sie sii sin sio sis sit sna snb snd sne sni snn sno sns snt soa sob sod soe soi son soo sos sot ss- ssa ssb ssd sse ssi ssn sso sss sst sta stb std ste sti stn sto sts stt taa tab tad tae tai tan tao tas tat tba tbb tbd tbe tbi tbn tbo tbs tbt tda tdb tdd tde tdi tdn tdo tds tdt te- tea teb ted tee tei ten teo tes tet tia tib tid tie tii tin tio tis tit tna tnb tnd tne tni tnn tno tns tnt to- toa tob tod toe toi ton too tos tot tsa tsb tsd tse tsi tsn tso tss tst tta ttb ttd tte tti ttn tto tts ttt