-ic a-a a-c a-i aaa aac aaf aag aai aak aan aar ac- aca acc acf acg aci ack acn acr af- afa afc aff afg afi afk afn afr ag- aga agc agf agg agi agk agn agr ai- aia aic aif aig aii aik ain air aka akc akg aki akk akn akr an- ana anc anf ang ani ank ann anr ar- ara arc arf arg ari ark arn arr c-- caa cac caf cag cai cak can car cca ccc ccf ccg cci cck ccn ccr cfa cfc cff cfg cfi cfk cfn cfr cga cgc cgg cgi cgn cgr ci- cia cic cif cig cii cik cin cir cka ckc cki cn- cna cnc cnf cng cni cnn cnr cra crc crf crg cri crk crn crr faa fac faf fag fai fak fan far fca fcc fcf fcg fci fck fcn fcr ffa ffc fff ffg ffi ffk ffn ffr fga fgc fgf fgg fgi fgn fgr fia fic fif fig fii fik fin fir fka fkc fkf fkg fki fkk fna fnc fnf fng fni fnk fnn fnr fra frc frf frg fri frk frn frr gaa gac gaf gag gai gak gan gar gca gcc gcf gcg gci gck gcn gcr gfa gfc gff gfi gfk gfr gga ggc ggg ggi ggn ggr gia gic gif gig gii gik gin gir gka gkn gna gnc gnf gni gnn gnr gra grc grf grg gri grk grn grr i-f ia- iaa iac iaf iag iai ian iar ica icc icf icg ici ick icn icr ifa ifc iff ifg ifi ifn ifr iga igc igf igg igi igk ign igr iia iic iif iii iin iir ika ikc ikf iki ikk ikr in- ina inc inf ing ini ink inn inr ir- ira irc irf irg iri irk irn irr ka- kaa kac kaf kag kai kak kan kar kca kcc kcg kci kck kcn kcr kfa kfc kff kfg kfi kga kgc kgf kgi kia kic kif kig kii kik kin kir kkc kki kkk kkn kkr kn- kna knc knf kng kni knk knn knr kra krc krf krg kri krk krn krr n-i naa nac naf nag nai nak nan nar nca ncc ncf ncg nci nck ncn ncr nfa nfc nff nfi nfk nfn nfr nga ngc ngf ngg ngi ngk ngn nia nic nif nig nii nik nin nir nka nkc nkf nki nkk nkn nkr nna nnc nnf nng nni nnk nnn nra nrc nrf nrg nri nrk nrn nrr ra- raa rac raf rag rai rak ran rar rca rcc rcf rcg rci rcn rcr rfa rfc rff rfg rfi rfk rfn rfr rga rgc rgf rgg rgi rgk rgn rgr ria ric rif rig rii rik rin rir rkc rkf rkg rkk rna rnc rng rni rnn rnr rra rrc rrf rrg rri rrk rrn rrr