a-a a-c a-t aaa aac aak aat aay ac- aca acc ack act acy aka akc akk at- ata atc att ay- aya ayc ayk ayt c-- caa cac cak cat cay cca ccc cck cct cka ckc ckt cky cta ctc ctk ctt cty cya cyc cyk cyt k-t ka- kaa kac kak kat kay kca kcc kck kct kkc kkk kkt kky kta ktc ktk ktt kya kyc kyt taa tac tak tat tay tca tcc tck tct tka tkc tkk tkt tky tta ttc ttk ttt tty tya tyc tyt yaa yac yak yat yay yca ycc ycy yka ykk yta ytc ytk ytt yyc yyt yyy