-ic a-a a-c a-i a-t aaa aac aae aag aai aak aan aas aat ac- aca acc ace acg aci ack acn acs act aea aec aee aeg aei aek aen aes aet ag- aga agc age agg agi agk agn ags agt ai- aia aic aie aig aii aik ain ais ait aka akc ake akg aki akk akn aks an- ana anc ane ang ani ank ann ans ant as- asa asc ase asg asi ask asn ass ast at- ata atc ate atg ati atn ats att c-- caa cac cae cag cai cak can cas cat cca ccc cce ccg cci cck ccn ccs cct ce- cea cec cee ceg cei cek cen ces cet cga cgc cge cgg cgi cgn cgs cgt ci- cia cic cie cig cii cik cin cis cit cka ckc cki cks ckt cn- cna cnc cne cng cni cnn cns cnt csa csc cse csg csi csk csn css cst cta ctc cte ctg cti ctk ctn cts ctt eaa eac eae eag eai eak ean eas eat ec- eca ecc ece ecg eci eck ecn ecs ect eea eec eee eeg eek een ees eet ega egc ege egg egi egn egs egt eia eic eie eig eii eik ein eis eit eka ekc eke ekg eki eks ekt en- ena enc ene eng eni enk enn ens ent es- esa esc ese esg esi esk esn ess est eta etc ete etg eti etk etn ets ett gaa gac gae gag gai gak gan gas gat gca gcc gce gcg gci gck gcn gcs gct ge- gea gec gee geg gei gek gen ges get gga ggc ggg ggi ggn ggs ggt gia gic gie gig gii gik gin gis git gka gkn gks gkt gna gnc gne gni gnn gns gnt gsa gsc gse gsg gsi gsk gsn gss gst gta gtc gte gtg gti gtk gtn gts gtt ia- iaa iac iae iag iai ian ias iat ica icc ice icg ici ick icn ics ict ie- iea iec iee ieg iei iek ien ies iet iga igc ige igg igi igk ign igs igt iia iic iie iii iin iis iit ika ikc ike iki ikk iks ikt in- ina inc ine ing ini ink inn ins int is- isa isc ise isg isi isk isn iss ist ita itc ite itg iti itk itn its itt k-t ka- kaa kac kae kag kai kak kan kas kat kca kcc kce kcg kci kck kcn kcs kct ke- kea kec kee keg kei kek ken kes ket kga kgc kgi kgs kia kic kie kig kii kik kin kis kit kkc kke kki kkk kkn kks kkt kn- kna knc kne kng kni knk knn knt ksa ksc kse ksg ksi ksk ksn kss kst kta ktc kte ktg ktk ktn kts ktt n-i naa nac nae nag nai nak nan nas nat nca ncc nce ncg nci nck ncn ncs nct ne- nea nec nee neg nei nek nen nes net nga ngc nge ngg ngi ngk ngn ngs ngt nia nic nie nig nii nik nin nis nit nka nkc nke nki nkk nkn nks nkt nna nnc nne nng nni nnk nnn nns nnt nsa nsc nse nsg nsi nsk nsn nss nst nta ntc nte ntg nti ntk ntn nts ntt saa sac sae sag sai sak san sas sat sca scc sce scg sci sck scn scs sct se- sea sec see seg sei sek sen ses set sga sgc sge sgg sgi sgk sgn sgs sgt sia sic sie sig sii sik sin sis sit sk- ska skc ske skg ski skk sks skt sna snc sne sng sni snk snn sns snt ss- ssa ssc sse ssg ssi ssk ssn sss sst sta stc ste stg sti stk stn sts stt taa tac tae tag tai tak tan tas tat tca tcc tce tcg tci tck tcn tcs tct te- tea tec tee teg tei tek ten tes tet tga tgc tge tgg tgi tgk tgn tgs tgt tia tic tie tig tii tik tin tis tit tka tkc tke tkg tkk tks tkt tna tnc tne tng tni tnk tnn tns tnt tsa tsc tse tsg tsi tsk tsn tss tst tta ttc tte ttg tti ttk ttn tts ttt