-ic a-a a-c a-i a-t aaa aac aae aai aao aas aat aax ac- aca acc ace aci aco acs act acx aea aec aee aei aeo aes aet aex ai- aia aic aie aii aio ais ait aix aoa aoc aoe aoi aoo aos aot aox as- asa asc ase asi aso ass ast asx at- ata atc ate ati ato ats att atx ax- axa axe axi axo axs axt axx c-- caa cac cae cai cao cas cat cax cca ccc cce cci cco ccs cct ccx ce- cea cec cee cei ceo ces cet cex ci- cia cic cie cii cio cis cit cix co- coa coc coe coi coo cos cot cox csa csc cse csi cso css cst csx cta ctc cte cti cto cts ctt ctx cxc cxi cxo cxs cxt cxx eaa eac eae eai eao eas eat eax ec- eca ecc ece eci eco ecs ect ecx eea eec eee eeo ees eet eex eia eic eie eii eio eis eit eix eo- eoa eoc eoe eoi eoo eos eot es- esa esc ese esi eso ess est esx eta etc ete eti eto ets ett etx ex- exa exc exe exi exo exs ext exx ia- iaa iac iae iai iao ias iat ica icc ice ici ico ics ict ie- iea iec iee iei ies iet iex iia iic iie iii iio iis iit iix io- ioa ioc ioe ioi ioo ios iot is- isa isc ise isi iso iss ist ita itc ite iti ito its itt itx ixc ixe ixi o-i oaa oac oae oai oao oas oat oax oc- oca occ oci oco ocs oct ocx oea oec oee oei oeo oes oet oex oia oic oie oii oio ois oit oo- ooa ooc ooi ooo oos oot oox os- osa osc ose osi oso oss ost osx ot- ota otc ote oti oto ots ott ox- oxa oxc oxi oxo oxt oxx saa sac sae sai sao sas sat sax sca scc sce sci sco scs sct scx se- sea sec see sei seo ses set sex sia sic sie sii sio sis sit six soa soc soe soi soo sos sot sox ss- ssa ssc sse ssi sso sss sst ssx sta stc ste sti sto sts stt stx sxc sxi sxs sxt t-x taa tac tae tai tao tas tat tax tca tcc tce tci tco tcs tct tcx te- tea tec tee tei teo tes tet tex tia tic tie tii tio tis tit tix to- toa toc toe toi too tos tot tox tsa tsc tse tsi tso tss tst tsx tta ttc tte tti tto tts ttt ttx txe txi txs txt xaa xac xas xat xci xcx xee xes xet xex xia xic xie xii xio xis xit xix xoa xoc xoi xoo xos xot xox xsa xsc xsi xss xst xtc xti xts xtx xxi xxo xxx