a-a a-b a-i a-t a-z aaa aab aad aae aai aat aaz ab- aba abb abd abe abi abt abz ad- ada adb add ade adi adt adz aea aeb aed aee aei aet aez ai- aia aib aid aie aii ait aiz at- ata atb atd ate ati att atz az- aza azb azd aze azi azt azz baa bab bad bae bai bat baz bba bbb bbd bbe bbi bbt bda bdb bdd bde bdi bdt bdz be- bea beb bed bee bei bet bez bi- bia bib bid bie bii bit biz bta btb btd bte bti btt btz bza bzd bze bzz daa dab dad dae dai dat daz dba dbb dbd dbe dbi dbt dbz dda ddb ddd dde ddi ddt ddz de- dea deb ded dee dei det dez di- dia dib did die dii dit diz dta dtb dtd dte dti dtt dtz dza dzb dzd dze dzi eaa eab ead eae eai eat eaz eba ebb ebd ebe ebi ebt ed- eda edb edd ede edi edt eea eeb eed eee eet eia eib eid eie eii eit eta etb etd ete eti ett etz eze ezz i-d ia- iaa iab iad iae iai iat iaz iba ibb ibd ibe ibi ibt ibz ida idb idd ide idi idt ie- iea ied iee iei iet iia iib iid iie iii iit ita itb itd ite iti itt itz iza ize izi izz taa tab tad tae tai tat taz tba tbb tbd tbe tbi tbt tbz tda tdb tdd tde tdi tdt te- tea teb ted tee tei tet tez tia tib tid tie tii tit tiz tta ttb ttd tte tti ttt tza tzd tze zaa zab zad zai zat zaz zbb zbt zdt zea zeb zed zee zet zez zia zib zid zie zit ziz zta zte zzt zzz