-al -ic a-a a-c a-i a-t aaa aac aae aag aai aal aas aat ac- aca acc ace acg aci acl acs act aea aec aee aeg aei ael aes aet ag- aga agc age agg agi agl ags agt ai- aia aic aie aig aii ail ais ait al- ala alc ale alg ali all als alt as- asa asc ase asg asi asl ass ast at- ata atc ate atg ati atl ats att c-- caa cac cae cag cai cal cas cat cca ccc cce ccg cci ccl ccs cct ce- cea cec cee ceg cei cel ces cet cga cgc cge cgg cgi cgl cgs cgt ci- cia cic cie cig cii cil cis cit cl- cla clc cle clg cli cll cls clt csa csc cse csg csi csl css cst cta ctc cte ctg cti ctl cts ctt eaa eac eae eag eai eal eas eat ec- eca ecc ece ecg eci ecl ecs ect eea eec eee eeg eel ees eet ega egc ege egg egi egl egs egt eia eic eie eig eii eil eis eit ela elc ele elg eli ell els elt es- esa esc ese esg esi esl ess est eta etc ete etg eti etl ets ett gaa gac gae gag gai gal gas gat gca gcc gce gcg gci gcl gcs gct ge- gea gec gee geg gei gel ges get gga ggc ggg ggi ggs ggt gia gic gie gig gii gil gis git gla glc gle glg gli gll gls glt gsa gsc gse gsg gsi gsl gss gst gta gtc gte gtg gti gtl gts gtt ia- iaa iac iae iag iai ial ias iat ica icc ice icg ici icl ics ict ie- iea iec iee ieg iei iel ies iet iga igc ige igg igi igl igs igt iia iic iie iii iil iis iit il- ila ilc ile ilg ili ill ils ilt is- isa isc ise isg isi isl iss ist ita itc ite itg iti itl its itt la- laa lac lae lag lai lal las lat lca lcc lce lcg lci lcl lcs lct lea lec lee leg lei lel les let lga lgc lge lgg lgi lgl lgs lgt lia lic lie lig lii lil lis lit lla llc lle llg lli lll lls llt lsa lsc lse lsg lsi lsl lss lst lta ltc lte ltg lti ltl lts ltt saa sac sae sag sai sal sas sat sca scc sce scg sci scl scs sct se- sea sec see seg sei sel ses set sga sgc sge sgg sgi sgl sgs sgt sia sic sie sig sii sil sis sit sla slc sle slg sli sll sls slt ss- ssa ssc sse ssg ssi ssl sss sst sta stc ste stg sti stl sts stt taa tac tae tag tai tal tas tat tca tcc tce tcg tci tcl tcs tct te- tea tec tee teg tei tel tes tet tga tgc tge tgg tgi tgl tgs tgt tia tic tie tig tii til tis tit tla tlc tle tlg tli tll tls tlt tsa tsc tse tsg tsi tsl tss tst tta ttc tte ttg tti ttl tts ttt