-ic a-a a-c a-i a-t aaa aac aaf aag aai aak aan aar aat ac- aca acc acf acg aci ack acn acr act af- afa afc aff afg afi afk afn afr aft ag- aga agc agf agg agi agk agn agr agt ai- aia aic aif aig aii aik ain air ait aka akc akg aki akk akn akr an- ana anc anf ang ani ank ann anr ant ar- ara arc arf arg ari ark arn arr art at- ata atc atf atg ati atn atr att c-- caa cac caf cag cai cak can car cat cca ccc ccf ccg cci cck ccn ccr cct cfa cfc cff cfg cfi cfk cfn cfr cft cga cgc cgg cgi cgn cgr cgt ci- cia cic cif cig cii cik cin cir cit cka ckc cki ckt cn- cna cnc cnf cng cni cnn cnr cnt cra crc crf crg cri crk crn crr crt cta ctc ctf ctg cti ctk ctn ctr ctt faa fac faf fag fai fak fan far fat fca fcc fcf fcg fci fck fcn fcr fct ffa ffc fff ffg ffi ffk ffn ffr fft fga fgc fgf fgg fgi fgn fgr fgt fia fic fif fig fii fik fin fir fit fka fkc fkf fkg fki fkk fkt fna fnc fnf fng fni fnk fnn fnr fnt fra frc frf frg fri frk frn frr frt fta ftc ftf ftg fti ftk ftn ftr ftt gaa gac gaf gag gai gak gan gar gat gca gcc gcf gcg gci gck gcn gcr gct gfa gfc gff gfi gfk gfr gft gga ggc ggg ggi ggn ggr ggt gia gic gif gig gii gik gin gir git gka gkn gkt gna gnc gnf gni gnn gnr gnt gra grc grf grg gri grk grn grr grt gta gtc gtf gtg gti gtk gtn gtr gtt i-f ia- iaa iac iaf iag iai ian iar iat ica icc icf icg ici ick icn icr ict ifa ifc iff ifg ifi ifn ifr ift iga igc igf igg igi igk ign igr igt iia iic iif iii iin iir iit ika ikc ikf iki ikk ikr ikt in- ina inc inf ing ini ink inn inr int ir- ira irc irf irg iri irk irn irr irt ita itc itf itg iti itk itn itt k-t ka- kaa kac kaf kag kai kak kan kar kat kca kcc kcg kci kck kcn kcr kct kfa kfc kff kfg kfi kga kgc kgf kgi kia kic kif kig kii kik kin kir kit kkc kki kkk kkn kkr kkt kn- kna knc knf kng kni knk knn knr knt kra krc krf krg kri krk krn krr krt kta ktc ktf ktg ktk ktn ktr ktt n-i naa nac naf nag nai nak nan nar nat nca ncc ncf ncg nci nck ncn ncr nct nfa nfc nff nfi nfk nfn nfr nft nga ngc ngf ngg ngi ngk ngn ngt nia nic nif nig nii nik nin nir nit nka nkc nkf nki nkk nkn nkr nkt nna nnc nnf nng nni nnk nnn nnt nra nrc nrf nrg nri nrk nrn nrr nrt nta ntc ntf ntg nti ntk ntn ntr ntt ra- raa rac raf rag rai rak ran rar rat rca rcc rcf rcg rci rcn rcr rct rfa rfc rff rfg rfi rfk rfn rfr rft rga rgc rgf rgg rgi rgk rgn rgr rgt ria ric rif rig rii rik rin rir rit rkc rkf rkg rkk rkt rna rnc rng rni rnn rnr rnt rra rrc rrf rrg rri rrk rrn rrr rrt rta rtc rtf rtg rti rtk rtn rtr rtt taa tac taf tag tai tak tan tar tat tca tcc tcf tcg tci tck tcn tcr tct tfa tfc tff tfg tfi tfk tfn tfr tft tga tgc tgf tgg tgi tgk tgn tgr tgt tia tic tif tig tii tik tin tir tit tka tkc tkg tkk tkr tkt tna tnc tnf tng tni tnk tnn tnr tnt tra trc trf trg tri trk trn trr trt tta ttc ttf ttg tti ttk ttn ttr ttt