-ic a-a a-c a-i a-t aaa aac aaf aag aai aak aan aar aas aat ac- aca acc acf acg aci ack acn acr acs act af- afa afc aff afg afi afk afn afr afs aft ag- aga agc agf agg agi agk agn agr ags agt ai- aia aic aif aig aii aik ain air ais ait aka akc akg aki akk akn akr aks an- ana anc anf ang ani ank ann anr ans ant ar- ara arc arf arg ari ark arn arr ars art as- asa asc asf asg asi ask asn asr ass ast at- ata atc atf atg ati atn atr ats att c-- caa cac caf cag cai cak can car cas cat cca ccc ccf ccg cci cck ccn ccr ccs cct cfa cfc cff cfg cfi cfk cfn cfr cfs cft cga cgc cgg cgi cgn cgr cgs cgt ci- cia cic cif cig cii cik cin cir cis cit cka ckc cki cks ckt cn- cna cnc cnf cng cni cnn cnr cns cnt cra crc crf crg cri crk crn crr crs crt csa csc csf csg csi csk csn csr css cst cta ctc ctf ctg cti ctk ctn ctr cts ctt faa fac faf fag fai fak fan far fas fat fca fcc fcf fcg fci fck fcn fcr fcs fct ffa ffc fff ffg ffi ffk ffn ffr ffs fft fga fgc fgf fgg fgi fgn fgr fgs fgt fia fic fif fig fii fik fin fir fis fit fka fkc fkf fkg fki fkk fkt fna fnc fnf fng fni fnk fnn fnr fns fnt fra frc frf frg fri frk frn frr frs frt fsa fsc fsf fsg fsi fsk fsn fsr fss fst fta ftc ftf ftg fti ftk ftn ftr fts ftt gaa gac gaf gag gai gak gan gar gas gat gca gcc gcf gcg gci gck gcn gcr gcs gct gfa gfc gff gfi gfk gfr gfs gft gga ggc ggg ggi ggn ggr ggs ggt gia gic gif gig gii gik gin gir gis git gka gkn gks gkt gna gnc gnf gni gnn gnr gns gnt gra grc grf grg gri grk grn grr grs grt gsa gsc gsf gsg gsi gsk gsn gsr gss gst gta gtc gtf gtg gti gtk gtn gtr gts gtt i-f ia- iaa iac iaf iag iai ian iar ias iat ica icc icf icg ici ick icn icr ics ict ifa ifc iff ifg ifi ifn ifr ifs ift iga igc igf igg igi igk ign igr igs igt iia iic iif iii iin iir iis iit ika ikc ikf iki ikk ikr iks ikt in- ina inc inf ing ini ink inn inr ins int ir- ira irc irf irg iri irk irn irr irs irt is- isa isc isf isg isi isk isn isr iss ist ita itc itf itg iti itk itn its itt k-t ka- kaa kac kaf kag kai kak kan kar kas kat kca kcc kcg kci kck kcn kcr kcs kct kfa kfc kff kfg kfi kfs kga kgc kgf kgi kgs kia kic kif kig kii kik kin kir kis kit kkc kki kkk kkn kkr kks kkt kn- kna knc knf kng kni knk knn knr knt kra krc krf krg kri krk krn krr krs krt ksa ksc ksf ksg ksi ksk ksn ksr kss kst kta ktc ktf ktg ktk ktn ktr kts ktt n-i naa nac naf nag nai nak nan nar nas nat nca ncc ncf ncg nci nck ncn ncr ncs nct nfa nfc nff nfi nfk nfn nfr nfs nft nga ngc ngf ngg ngi ngk ngn ngs ngt nia nic nif nig nii nik nin nir nis nit nka nkc nkf nki nkk nkn nkr nks nkt nna nnc nnf nng nni nnk nnn nns nnt nra nrc nrf nrg nri nrk nrn nrr nrs nrt nsa nsc nsf nsg nsi nsk nsn nsr nss nst nta ntc ntf ntg nti ntk ntn ntr nts ntt ra- raa rac raf rag rai rak ran rar ras rat rca rcc rcf rcg rci rcn rcr rcs rct rfa rfc rff rfg rfi rfk rfn rfr rfs rft rga rgc rgf rgg rgi rgk rgn rgr rgs rgt ria ric rif rig rii rik rin rir ris rit rkc rkf rkg rkk rks rkt rna rnc rng rni rnn rnr rns rnt rra rrc rrf rrg rri rrk rrn rrr rrs rrt rsa rsc rsf rsg rsi rsk rsn rsr rss rst rta rtc rtf rtg rti rtk rtn rtr rts rtt saa sac saf sag sai sak san sar sas sat sca scc scf scg sci sck scn scr scs sct sfa sfc sff sfg sfi sfk sfn sfr sfs sft sga sgc sgf sgg sgi sgk sgn sgr sgs sgt sia sic sif sig sii sik sin sir sis sit sk- ska skc skf skg ski skk skr sks skt sna snc snf sng sni snk snn snr sns snt sr- sra src srf srg sri srk srn srr srs srt ss- ssa ssc ssf ssg ssi ssk ssn ssr sss sst sta stc stf stg sti stk stn str sts stt taa tac taf tag tai tak tan tar tas tat tca tcc tcf tcg tci tck tcn tcr tcs tct tfa tfc tff tfg tfi tfk tfn tfr tfs tft tga tgc tgf tgg tgi tgk tgn tgr tgs tgt tia tic tif tig tii tik tin tir tis tit tka tkc tkg tkk tkr tks tkt tna tnc tnf tng tni tnk tnn tnr tns tnt tra trc trf trg tri trk trn trr trs trt tsa tsc tsf tsg tsi tsk tsn tsr tss tst tta ttc ttf ttg tti ttk ttn ttr tts ttt