a	3	3	0	1	17	1	2	5	5	8	9	2	7	0	0	1	1	4
c	3	3	1	16	0	1	5	2	2	4	3	0	3	0	10	13	4	0
g	8	4	16	0	0	7	10	1	6	2	0	10	4	17	5	0	4	5
t	3	7	0	0	0	8	0	9	4	3	5	5	3	0	2	3	8	8
//