a	6	1	0	2	0	3	1	0	1	2	2	0	1	0	3	3	0	2	1	1	2	0	3	2
c	10	12	23	6	24	21	3	24	23	21	21	4	23	21	10	21	5	21	22	5	7	8	13	9
g	7	9	1	8	2	0	20	1	0	2	0	20	2	4	13	1	20	0	2	20	15	16	5	9
t	3	4	2	10	0	2	2	1	2	1	3	2	0	1	0	1	1	3	1	0	2	2	5	6
//