-ic a-a a-c a-i a-t aaa aac aai aam aao aas aat aax ac- aca acc aci acm aco acs act acx ai- aia aic aii aim aio ais ait aix ama amc ami amm amo ams amt amx aoa aoc aoi aom aoo aos aot aox as- asa asc asi asm aso ass ast asx at- ata atc ati atm ato ats att atx ax- axa axi axm axo axs axt axx c-- caa cac cai cam cao cas cat cax cca ccc cci ccm cco ccs cct ccx ci- cia cic cii cim cio cis cit cix cma cmc cmi cmm cmo cms cmt cmx co- coa coc coi com coo cos cot cox csa csc csi csm cso css cst csx cta ctc cti ctm cto cts ctt ctx cxc cxi cxo cxs cxt cxx ia- iaa iac iai iam iao ias iat ica icc ici icm ico ics ict iia iic iii iim iio iis iit iix im- ima imc imi imm imo ims imt imx io- ioa ioc ioi iom ioo ios iot is- isa isc isi ism iso iss ist ita itc iti itm ito its itt itx ixc ixi m-o maa mac mai mam mao mas mat max mc- mca mcc mci mcm mco mcs mct mcx mi- mia mic mii mim mio mis mit mix mma mmc mmi mmm mmo mms mmt mmx moa moc moi mom moo mos mot mox msa msc msi msm mso mss mst msx mta mtc mti mtm mto mts mtt mtx mxa mxc mxi mxs o-i oaa oac oai oam oao oas oat oax oc- oca occ oci ocm oco ocs oct ocx oia oic oii oim oio ois oit om- oma omc omi omm omo oms omt omx oo- ooa ooc ooi oom ooo oos oot oox os- osa osc osi osm oso oss ost osx ot- ota otc oti otm oto ots ott ox- oxa oxc oxi oxo oxt oxx saa sac sai sam sao sas sat sax sca scc sci scm sco scs sct scx sia sic sii sim sio sis sit six sma smc smi smm smo sms smt smx soa soc soi som soo sos sot sox ss- ssa ssc ssi ssm sso sss sst ssx sta stc sti stm sto sts stt stx sxc sxi sxm sxs sxt t-x taa tac tai tam tao tas tat tax tca tcc tci tcm tco tcs tct tcx tia tic tii tim tio tis tit tix tma tmc tmi tmm tmo tms tmt tmx to- toa toc toi tom too tos tot tox tsa tsc tsi tsm tso tss tst tsx tta ttc tti ttm tto tts ttt ttx txi txs txt xaa xac xam xas xat xci xcx xia xic xii xio xis xit xix xma xmc xmi xmm xmo xms xmt xmx xoa xoc xoi xom xoo xos xot xox xsa xsc xsi xsm xss xst xtc xti xtm xts xtx xxi xxo xxx