-ic a-a a-c a-i aaa aac aaf aag aai aan ac- aca acc acf acg aci acn af- afa afc aff afg afi afn ag- aga agc agf agg agi agn ai- aia aic aif aig aii ain an- ana anc anf ang ani ann c-- caa cac caf cag cai can cca ccc ccf ccg cci ccn cfa cfc cff cfg cfi cfn cga cgc cgg cgi cgn ci- cia cic cif cig cii cin cn- cna cnc cnf cng cni cnn faa fac faf fag fai fan fca fcc fcf fcg fci fcn ffa ffc fff ffg ffi ffn fga fgc fgf fgg fgi fgn fia fic fif fig fii fin fna fnc fnf fng fni fnn gaa gac gaf gag gai gan gca gcc gcf gcg gci gcn gfa gfc gff gfi gga ggc ggg ggi ggn gia gic gif gig gii gin gna gnc gnf gni gnn i-f ia- iaa iac iaf iag iai ian ica icc icf icg ici icn ifa ifc iff ifg ifi ifn iga igc igf igg igi ign iia iic iif iii iin in- ina inc inf ing ini inn n-i naa nac naf nag nai nan nca ncc ncf ncg nci ncn nfa nfc nff nfi nfn nga ngc ngf ngg ngi ngn nia nic nif nig nii nin nna nnc nnf nng nni nnn