-ic a-a a-c a-i a-t aaa aac aad aae aai aao aat aax ac- aca acc acd ace aci aco act acx ad- ada adc add ade adi ado adt adx aea aec aed aee aei aeo aet aex ai- aia aic aid aie aii aio ait aix aoa aoc aod aoe aoi aoo aot aox at- ata atc atd ate ati ato att atx ax- axa axe axi axo axt axx c-- caa cac cad cae cai cao cat cax cca ccc ccd cce cci cco cct ccx cda cdc cdd cde cdi cdo cdt cdx ce- cea cec ced cee cei ceo cet cex ci- cia cic cid cie cii cio cit cix co- coa coc cod coe coi coo cot cox cta ctc ctd cte cti cto ctt ctx cxc cxi cxo cxt cxx daa dac dad dae dai dao dat dax dca dcc dcd dce dci dco dct dcx dda ddc ddd dde ddi ddo ddt ddx de- dea dec ded dee dei deo det dex di- dia dic did die dii dio dit dix doa doc dod doe doi doo dot dox dta dtc dtd dte dti dto dtt dtx dxc dxd dxi dxo dxt dxx eaa eac ead eae eai eao eat eax ec- eca ecc ecd ece eci eco ect ecx ed- eda edc edd ede edi edo edt edx eea eec eed eee eeo eet eex eia eic eid eie eii eio eit eix eo- eoa eoc eod eoe eoi eoo eot eta etc etd ete eti eto ett etx ex- exa exc exd exe exi exo ext exx i-d ia- iaa iac iad iae iai iao iat ica icc icd ice ici ico ict ida idc idd ide idi ido idt idx ie- iea iec ied iee iei iet iex iia iic iid iie iii iio iit iix io- ioa ioc iod ioe ioi ioo iot ita itc itd ite iti ito itt itx ixc ixe ixi o-i oaa oac oad oae oai oao oat oax oc- oca occ ocd oci oco oct ocx oda odc odd ode odi odo odt oea oec oed oee oei oeo oet oex oia oic oid oie oii oio oit oo- ooa ooc ood ooi ooo oot oox ot- ota otc otd ote oti oto ott ox- oxa oxc oxi oxo oxt oxx t-x taa tac tad tae tai tao tat tax tca tcc tcd tce tci tco tct tcx tda tdc tdd tde tdi tdo tdt tdx te- tea tec ted tee tei teo tet tex tia tic tid tie tii tio tit tix to- toa toc tod toe toi too tot tox tta ttc ttd tte tti tto 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 xio xit xix xoa xoc xod xoi xoo xot xox xtc xti xtx xxi xxo xxx