a-a a-c aaa aac aad aar aay ac- aca acc acd acr acy ad- ada adc add adr ady ar- ara arc ard arr ary ay- aya ayc ayd ayr c-- caa cac cad car cay cca ccc ccd ccr cda cdc cdd cdr cdy cra crc crd crr cry cya cyc cyd cyr daa dac dad dar day dca dcc dcd dcr dda ddc ddd ddr ddy dra drc drd drr dry dy- dya dyc dyd dyr dyy ra- raa rac rad rar ray rca rcc rcd rcr rda rdc rdd rdr rdy rra rrc rrd rrr ry- rya ryc ryd ryr ryy yaa yac yad yar yay yca ycc ycd ycy yda ydy yra yrc yyc yyy