-ic a-a a-c a-i a-t aaa aac aad aae aai aat aax ac- aca acc acd ace aci act acx ad- ada adc add ade adi adt adx aea aec aed aee aei aet aex ai- aia aic aid aie aii ait aix at- ata atc atd ate ati att atx ax- axa axe axi axt axx c-- caa cac cad cae cai cat cax cca ccc ccd cce cci cct ccx cda cdc cdd cde cdi cdt cdx ce- cea cec ced cee cei cet cex ci- cia cic cid cie cii cit cix cta ctc ctd cte cti ctt ctx cxc cxi cxt cxx daa dac dad dae dai dat dax dca dcc dcd dce dci dct dcx dda ddc ddd dde ddi ddt ddx de- dea dec ded dee dei det dex di- dia dic did die dii dit dix dta dtc dtd dte dti dtt dtx dxc dxd dxi dxt dxx eaa eac ead eae eai eat eax ec- eca ecc ecd ece eci ect ecx ed- eda edc edd ede edi edt edx eea eec eed eee eet eex eia eic eid eie eii eit eix eta etc etd ete eti ett etx ex- exa exc exd exe exi ext exx i-d ia- iaa iac iad iae iai iat ica icc icd ice ici ict ida idc idd ide idi idt idx ie- iea iec ied iee iei iet iex iia iic iid iie iii iit iix ita itc itd ite iti itt itx ixc ixe ixi t-x taa tac tad tae tai tat tax tca tcc tcd tce tci tct tcx tda tdc tdd tde tdi tdt tdx te- tea tec ted tee tei tet tex tia tic tid tie tii tit tix tta ttc ttd tte tti ttt ttx txe txi txt xaa xac xad xat xcd xci xcx xda xdc xde xdi xdt xed xee xet xex xia xic xie xii xit xix xtc xti xtx xxi xxx