a-a a-c aaa aac aad aag aay ac- aca acc acd acg acy ad- ada adc add adg ady ag- aga agc agd agg agy ay- aya ayc ayd c-- caa cac cad cag cay cca ccc ccd ccg cda cdc cdd cdg cdy cga cgc cgd cgg cgy cya cyc cyd cyg daa dac dad dag day dca dcc dcd dcg dda ddc ddd ddg ddy dga dgc dgd dgg dy- dya dyc dyd dyy g-d gaa gac gad gag gay gca gcc gcd gcg gda gdc gdd gga ggc ggd ggg gy- gya gyd yaa yac yad yag yay yca ycc ycd ycy yda ydg ydy yga ygc yyc yyg yyy