a-a a-c aaa aac aad aag aak aar ac- aca acc acd acg ack acr ad- ada adc add adg adk adr ag- aga agc agd agg agk agr aka akc akd akg akk akr ar- ara arc ard arg ark arr c-- caa cac cad cag cak car cca ccc ccd ccg cck ccr cda cdc cdd cdg cdk cdr cga cgc cgd cgg cgr cka ckc ckd cra crc crd crg crk crr daa dac dad dag dak dar dca dcc dcd dcg dck dcr dda ddc ddd ddg ddk ddr dga dgc dgd dgg dgk dgr dka dkc dkg dkk dkr dra drc drd drg drk drr g-d gaa gac gad gag gak gar gca gcc gcd gcg gck gcr gda gdc gdd gdk gdr gga ggc ggd ggg ggr gka gkd gra grc grd grg grk grr ka- kaa kac kad kag kak kar kca kcc kcd kcg kck kcr kda kdc kdg kdk kdr kga kgc kgd kkc kkk kkr kra krc krd krg krk krr ra- raa rac rad rag rak rar rca rcc rcd rcg rcr rda rdc rdd rdg rdr rga rgc rgd rgg rgk rgr rkc rkg rkk rra rrc rrd rrg rrk rrr