-al -ic a-a a-c a-i a-t aaa aac aag aai aak aal aan aar aas aat ac- aca acc acg aci ack acl acn acr acs act ag- aga agc agg agi agk agl agn agr ags agt ai- aia aic aig aii aik ail ain air ais ait aka akc akg aki akk akl akn akr aks al- ala alc alg ali alk all aln alr als alt an- ana anc ang ani ank anl ann anr ans ant ar- ara arc arg ari ark arl arn arr ars art as- asa asc asg asi ask asl asn asr ass ast at- ata atc atg ati atl atn atr ats att c-- caa cac cag cai cak cal can car cas cat cca ccc ccg cci cck ccl ccn ccr ccs cct cga cgc cgg cgi cgl cgn cgr cgs cgt ci- cia cic cig cii cik cil cin cir cis cit cka ckc cki cks ckt cl- cla clc clg cli clk cll cln clr cls clt cn- cna cnc cng cni cnl cnn cnr cns cnt cra crc crg cri crk crl crn crr crs crt csa csc csg csi csk csl csn csr css cst cta ctc ctg cti ctk ctl ctn ctr cts ctt gaa gac gag gai gak gal gan gar gas gat gca gcc gcg gci gck gcl gcn gcr gcs gct gga ggc ggg ggi ggn ggr ggs ggt gia gic gig gii gik gil gin gir gis git gka gkn gks gkt gla glc glg gli glk gll gln glr gls glt gna gnc gni gnl gnn gnr gns gnt gra grc grg gri grk grl grn grr grs grt gsa gsc gsg gsi gsk gsl gsn gsr gss gst gta gtc gtg gti gtk gtl gtn gtr gts gtt ia- iaa iac iag iai ial ian iar ias iat ica icc icg ici ick icl icn icr ics ict iga igc igg igi igk igl ign igr igs igt iia iic iii iil iin iir iis iit ika ikc iki ikk ikl ikr iks ikt il- ila ilc ilg ili ilk ill iln ilr ils ilt in- ina inc ing ini ink inl inn inr ins int ir- ira irc irg iri irk irl irn irr irs irt is- isa isc isg isi isk isl isn isr iss ist ita itc itg iti itk itl itn its itt k-t ka- kaa kac kag kai kak kal kan kar kas kat kca kcc kcg kci kck kcl kcn kcr kcs kct kga kgc kgi kgl kgs kia kic kig kii kik kil kin kir kis kit kkc kki kkk kkl kkn kkr kks kkt kl- kla klc klg kli klr kls klt kn- kna knc kng kni knk knl knn knr knt kra krc krg kri krk krl krn krr krs krt ksa ksc ksg ksi ksk ksl ksn ksr kss kst kta ktc ktg ktk ktl ktn ktr kts ktt la- laa lac lag lai lak lal lan lar las lat lca lcc lcg lci lck lcl lcn lcr lcs lct lga lgc lgg lgi lgk lgl lgn lgr lgs lgt lia lic lig lii lik lil lin lir lis lit lka lkg lkl lkr lks lkt lla llc llg lli llk lll lln llr lls llt lna lnc lng lni lnk lnl lnn lnr lns lnt lra lrc lrg lri lrk lrn lrr lrs lrt lsa lsc lsg lsi lsk lsl lsn lsr lss lst lta ltc ltg lti ltk ltl ltr lts ltt n-i naa nac nag nai nak nal nan nar nas nat nca ncc ncg nci nck ncl ncn ncr ncs nct nga ngc ngg ngi ngk ngl ngn ngs ngt nia nic nig nii nik nil nin nir nis nit nka nkc nki nkk nkn nkr nks nkt nla nlc nlg nli nlk nll nln nlr nls nlt nna nnc nng nni nnk nnl nnn nns nnt nra nrc nrg nri nrk nrl nrn nrr nrs nrt nsa nsc nsg nsi nsk nsl nsn nsr nss nst nta ntc ntg nti ntk ntn ntr nts ntt ra- raa rac rag rai rak ral ran rar ras rat rca rcc rcg rci rcl rcn rcr rcs rct rga rgc rgg rgi rgk rgn rgr rgs rgt ria ric rig rii rik ril rin rir ris rit rkc rkg rkk rks rkt rla rlc rlg rli rll rln rlr rls rlt rna rnc rng rni rnn rnr rns rnt rra rrc rrg rri rrk rrl rrn rrr rrs rrt rsa rsc rsg rsi rsk rsl rsn rsr rss rst rta rtc rtg rti rtk rtl rtn rtr rts rtt saa sac sag sai sak sal san sar sas sat sca scc scg sci sck scl scn scr scs sct sga sgc sgg sgi sgk sgl sgn sgr sgs sgt sia sic sig sii sik sil sin sir sis sit sk- ska skc skg ski skk skl skr sks skt sla slc slg sli slk sll sln slr sls slt sna snc sng sni snk snl snn snr sns snt sr- sra src srg sri srk srl srn srr srs srt ss- ssa ssc ssg ssi ssk ssl ssn ssr sss sst sta stc stg sti stk stl stn str sts stt taa tac tag tai tak tal tan tar tas tat tca tcc tcg tci tck tcl tcn tcr tcs tct tga tgc tgg tgi tgk tgl tgn tgr tgs tgt tia tic tig tii tik til tin tir tis tit tka tkc tkg tkk tkl tkr tks tkt tla tlc tlg tli tlk tll tln tlr tls tlt tna tnc tng tni tnk tnl tnn tnr tns tnt tra trc trg tri trk trl trn trr trs trt tsa tsc tsg tsi tsk tsl tsn tsr tss tst tta ttc ttg tti ttk ttl ttn ttr tts ttt