a-a a-c a-t aaa aac aad aae aak aan aao aas aat ac- aca acc acd ace ack acn aco acs act ad- ada adc add ade adk adn ado ads adt aea aec aed aee aek aen aeo aes aet aka akc akd ake akk akn ako aks an- ana anc and ane ank ann ano ans ant aoa aoc aod aoe aok aon aoo aos aot as- asa asc asd ase ask asn aso ass ast at- ata atc atd ate atn ato ats att c-- caa cac cad cae cak can cao cas cat cca ccc ccd cce cck ccn cco ccs cct cda cdc cdd cde cdk cdn cdo cds cdt ce- cea cec ced cee cek cen ceo ces cet cka ckc ckd cko cks ckt cn- cna cnc cnd cne cnn cno cns cnt co- coa coc cod coe cok con coo cos cot csa csc csd cse csk csn cso css cst cta ctc ctd cte ctk ctn cto cts ctt daa dac dad dae dak dan dao das dat dca dcc dcd dce dck dcn dco dcs dct dda ddc ddd dde ddk ddn ddo dds ddt de- dea dec ded dee dek den deo des det dka dkc dke dkk dko dks dkt dna dnc dnd dne dnk dnn dno dns dnt doa doc dod doe dok don doo dos dot dsa dsc dsd dse dsk dsn dso dss dst dta dtc dtd dte dtk dtn dto dts dtt eaa eac ead eae eak ean eao eas eat ec- eca ecc ecd ece eck ecn eco ecs ect ed- eda edc edd ede edk edn edo eds edt eea eec eed eee eek een eeo ees eet eka ekc ekd eke eko eks ekt en- ena enc end ene enk enn eno ens ent eo- eoa eoc eod eoe eok eon eoo eos eot es- esa esc esd ese esk esn eso ess est eta etc etd ete etk etn eto ets ett k-t ka- kaa kac kad kae kak kan kao kas kat kca kcc kcd kce kck kcn kcs kct kda kdc kde kdk kdo kds kdt ke- kea kec ked kee kek ken keo kes ket kkc kke kkk kkn kks kkt kn- kna knc knd kne knk knn kno knt koa koc kod koe kok kon koo kos kot ksa ksc ksd kse ksk ksn kso kss kst kta ktc kte ktk ktn kto kts ktt naa nac nad nae nak nan nao nas nat nca ncc ncd nce nck ncn nco ncs nct nda ndc ndd nde ndk ndn ndo nds ndt ne- nea nec ned nee nek nen neo nes net nka nkc nke nkk nkn nko nks nkt nna nnc nne nnk nnn nno nns nnt no- noa noc nod noe nok non noo nos not nsa nsc nsd nse nsk nsn nso nss nst nta ntc ntd nte ntk ntn nto nts ntt oaa oac oad oae oak oan oao oas oat oc- oca occ ocd ock ocn oco ocs oct oda odc odd ode odn odo ods odt oea oec oed oee oen oeo oes oet oka okc okd oke okk oko oks on- ona onc ond one onk onn ono ons ont oo- ooa ooc ood ook oon ooo oos oot os- osa osc osd ose osk osn oso oss ost ot- ota otc otd ote otk otn oto ots ott saa sac sad sae sak san sao sas sat sca scc scd sce sck scn sco scs sct sda sdc sdd sde sdk sdn sdo sds sdt se- sea sec sed see sek sen seo ses set sk- ska skc skd ske skk sko sks skt sna snc snd sne snk snn sno sns snt soa soc sod soe sok son soo sos sot ss- ssa ssc ssd sse ssk ssn sso sss sst sta stc std ste stk stn sto sts stt taa tac tad tae tak tan tao tas tat tca tcc tcd tce tck tcn tco tcs tct tda tdc tdd tde tdk tdn tdo tds tdt te- tea tec ted tee tek ten teo tes tet tka tkc tke tkk tko tks tkt tna tnc tnd tne tnk tnn tno tns tnt to- toa toc tod toe tok ton too tos tot tsa tsc tsd tse tsk tsn tso tss tst tta ttc ttd tte ttk ttn tto tts ttt