-ic a-a a-c a-i a-t aaa aac aad aag aai aan aar aas aat ac- aca acc acd acg aci acn acr acs act ad- ada adc add adg adi adn adr ads adt ag- aga agc agd agg agi agn agr ags agt ai- aia aic aid aig aii ain air ais ait an- ana anc and ang ani ann anr ans ant ar- ara arc ard arg ari arn arr ars art as- asa asc asd asg asi asn asr ass ast at- ata atc atd atg ati atn atr ats att c-- caa cac cad cag cai can car cas cat cca ccc ccd ccg cci ccn ccr ccs cct cda cdc cdd cdg cdi cdn cdr cds cdt cga cgc cgd cgg cgi cgn cgr cgs cgt ci- cia cic cid cig cii cin cir cis cit cn- cna cnc cnd cng cni cnn cnr cns cnt cra crc crd crg cri crn crr crs crt csa csc csd csg csi csn csr css cst cta ctc ctd ctg cti ctn ctr cts ctt daa dac dad dag dai dan dar das dat dca dcc dcd dcg dci dcn dcr dcs dct dda ddc ddd ddg ddi ddn ddr dds ddt dga dgc dgd dgg dgi dgn dgr dgs dgt di- dia dic did dig dii din dir dis dit dna dnc dnd dng dni dnn dnr dns dnt dra drc drd drg dri drn drr drs drt dsa dsc dsd dsg dsi dsn dsr dss dst dta dtc dtd dtg dti dtn dtr dts dtt g-d gaa gac gad gag gai gan gar gas gat gca gcc gcd gcg gci gcn gcr gcs gct gda gdc gdd gdi gdn gdr gds gdt gga ggc ggd ggg ggi ggn ggr ggs ggt gia gic gid gig gii gin gir gis git gna gnc gnd gni gnn gnr gns gnt gra grc grd grg gri grn grr grs grt gsa gsc gsd gsg gsi gsn gsr gss gst gta gtc gtd gtg gti gtn gtr gts gtt i-d ia- iaa iac iad iag iai ian iar ias iat ica icc icd icg ici icn icr ics ict ida idc idd idg idi idn idr ids idt iga igc igd igg igi ign igr igs igt iia iic iid iii iin iir iis iit in- ina inc ind ing ini inn inr ins int ir- ira irc ird irg iri irn irr irs irt is- isa isc isd isg isi isn isr iss ist ita itc itd itg iti itn its itt n-i naa nac nad nag nai nan nar nas nat nca ncc ncd ncg nci ncn ncr ncs nct nda ndc ndd ndg ndi ndn ndr nds ndt nga ngc ngd ngg ngi ngn ngs ngt nia nic nid nig nii nin nir nis nit nna nnc nng nni nnn nns nnt nra nrc nrd nrg nri nrn nrr nrs nrt nsa nsc nsd nsg nsi nsn nsr nss nst nta ntc ntd ntg nti ntn ntr nts ntt ra- raa rac rad rag rai ran rar ras rat rca rcc rcd rcg rci rcn rcr rcs rct rda rdc rdd rdg rdi rdn rdr rds rdt rga rgc rgd rgg rgi rgn rgr rgs rgt ria ric rid rig rii rin rir ris rit rna rnc rnd rng rni rnn rnr rns rnt rra rrc rrd rrg rri rrn rrr rrs rrt rsa rsc rsd rsg rsi rsn rsr rss rst rta rtc rtd rtg rti rtn rtr rts rtt saa sac sad sag sai san sar sas sat sca scc scd scg sci scn scr scs sct sda sdc sdd sdg sdi sdn sdr sds sdt sga sgc sgd sgg sgi sgn sgr sgs sgt sia sic sid sig sii sin sir sis sit sna snc snd sng sni snn snr sns snt sr- sra src srd srg sri srn srr srs srt ss- ssa ssc ssd ssg ssi ssn ssr sss sst sta stc std stg sti stn str sts stt taa tac tad tag tai tan tar tas tat tca tcc tcd tcg tci tcn tcr tcs tct tda tdc tdd tdg tdi tdn tdr tds tdt tga tgc tgg tgi tgn tgr tgs tgt tia tic tid tig tii tin tir tis tit tna tnc tnd tng tni tnn tnr tns tnt tra trc trd trg tri trn trr trs trt tsa tsc tsd tsg tsi tsn tsr tss tst tta ttc ttd ttg tti ttn ttr tts ttt