a	6	5	2	15	0	0	0	1	1	5	3	7
c	1	2	2	0	0	0	0	0	0	2	2	1
g	3	8	3	1	17	17	16	16	14	0	4	6
t	7	2	10	1	0	0	1	0	2	10	8	3
//