a-a a-c aaa aac aaf aag aan aar aay ac- aca acc acf acg acn acr acy af- afa afc aff afg afn afr afy ag- aga agc agf agg agn agr agy an- ana anc anf ang ann anr any ar- ara arc arf arg arn arr ary ay- aya ayc ayf ayn ayr c-- caa cac caf cag can car cay cca ccc ccf ccg ccn ccr cfa cfc cff cfg cfn cfr cga cgc cgg cgn cgr cgy cn- cna cnc cnf cng cnn cnr cny cra crc crf crg crn crr cry cya cyc cyf cyg cyn cyr faa fac faf fag fan far fay fca fcc fcf fcg fcn fcr fcy ffa ffc fff ffg ffn ffr ffy fga fgc fgf fgg fgn fgr fna fnc fnf fng fnn fnr fra frc frf frg frn frr fry fy- fya fyc fyn gaa gac gaf gag gan gar gay gca gcc gcf gcg gcn gcr gfa gfc gff gfr gfy gga ggc ggg ggn ggr gna gnc gnf gnn gnr gra grc grf grg grn grr gry gy- gya gyf gyn gyr naa nac naf nag nan nar nay nca ncc ncf ncg ncn ncr nfa nfc nff nfn nfr nga ngc ngf ngg ngn nna nnc nnf nng nnn nra nrc nrf nrg nrn nrr nry nya nyc nyf nyg nyn nyy ra- raa rac raf rag ran rar ray rca rcc rcf rcg rcn rcr rfa rfc rff rfg rfn rfr rga rgc rgf rgg rgn rgr rna rnc rng rnn rnr rny rra rrc rrf rrg rrn rrr ry- rya ryc ryf ryg ryn ryr ryy yaa yac yaf yag yan yar yay yca ycc ycf ycy yfa yfc yff yfr yga ygc yna yng ynn yny yra yrc yrf yrg yrn yyc yyf yyg yyy