a-a a-b a-i a-t aaa aab aad aae aai aan aao aat ab- aba abb abd abe abi abn abo abt ad- ada adb add ade adi adn ado adt aea aeb aed aee aei aen aeo aet ai- aia aib aid aie aii ain aio ait an- ana anb and ane ani ann ano ant aoa aob aod aoe aoi aon aoo aot at- ata atb atd ate ati atn ato att baa bab bad bae bai ban bao bat bba bbb bbd bbe bbi bbn bbo bbt bda bdb bdd bde bdi bdo bdt be- bea beb bed bee bei ben beo bet bi- bia bib bid bie bii bin bio bit bna bnb bnd bne bni bnn bno bnt boa bob bod boe boi bon boo bot bta btb btd bte bti btn bto btt daa dab dad dae dai dan dao dat dba dbb dbd dbe dbi dbn dbo dbt dda ddb ddd dde ddi ddn ddo ddt de- dea deb ded dee dei den deo det di- dia dib did die dii din dio dit dna dnb dnd dne dni dnn dno dnt doa dob dod doe doi don doo dot dta dtb dtd dte dti dtn dto dtt eaa eab ead eae eai ean eao eat eba ebb ebd ebe ebi ebn ebo ebt ed- eda edb edd ede edi edn edo edt eea eeb eed eee een eeo eet eia eib eid eie eii ein eio eit en- ena enb end ene eni enn eno ent eo- eoa eob eod eoe eoi eon eoo eot eta etb etd ete eti etn eto ett i-d ia- iaa iab iad iae iai ian iao iat iba ibb ibd ibe ibi ibn ibo ibt ida idb idd ide idi idn ido idt ie- iea ied iee iei ien iet iia iib iid iie iii iin iio iit in- ina inb ind ine ini inn ino int io- ioa iob iod ioe ioi ion ioo iot ita itb itd ite iti itn ito itt n-i naa nab nad nae nai nan nao nat nba nbb nbd nbe nbi nbn nbo nbt nda ndb ndd nde ndi ndn ndo ndt ne- nea neb ned nee nei nen neo net nia nib nid nie nii nin nio nit nna nnb nne nni nnn nno nnt no- noa nob nod noe noi non noo not nta ntb ntd nte nti ntn nto ntt o-i oaa oab oad oae oai oan oao oat ob- oba obb obd obe obi obn obo obt oda odb odd ode odi odn odo odt oea oeb oed oee oei oen oeo oet oia oib oid oie oii oin oio oit on- ona onb ond one oni onn ono ont oo- ooa oob ood ooi oon ooo oot ot- ota otb otd ote oti otn oto ott taa tab tad tae tai tan tao tat tba tbb tbd tbe tbi tbn tbo tbt tda tdb tdd tde tdi tdn tdo tdt te- tea teb ted tee tei ten teo tet tia tib tid tie tii tin tio tit tna tnb tnd tne tni tnn tno tnt to- toa tob tod toe toi ton too tot tta ttb ttd tte tti ttn tto ttt