a	1	3	1	4	0	0	1	0	5	0	0	1	0	5	0	1
c	13	13	16	0	0	19	20	19	0	2	18	21	21	0	3	9
g	4	2	2	18	6	1	1	1	18	0	3	0	0	17	3	4
t	5	5	4	1	17	3	1	3	0	21	2	1	2	1	17	9
//