a-a a-i a-t aaa aad aae aai aat aax ad- ada add ade adi adt adx aea aed aee aei aet aex ai- aia aid aie aii ait aix at- ata atd ate ati att atx ax- axa axe axi axt axx daa dad dae dai dat dax dda ddd dde ddi ddt ddx de- dea ded dee dei det dex di- dia did die dii dit dix dta dtd dte dti dtt dtx dxd dxi dxt dxx eaa ead eae eai eat eax ed- eda edd ede edi edt edx eea eed eee eet eex eia eid eie eii eit eix eta etd ete eti ett etx ex- exa exd exe exi ext exx i-d ia- iaa iad iae iai iat ida idd ide idi idt idx ie- iea ied iee iei iet iex iia iid iie iii iit iix ita itd ite iti itt itx ixe ixi t-x taa tad tae tai tat tax tda tdd tde tdi tdt tdx te- tea ted tee tei tet tex tia tid tie tii tit tix tta ttd tte tti ttt ttx txe txi txt xaa xad xat xda xde xdi xdt xed xee xet xex xia xie xii xit xix xti xtx xxi xxx