a	1	4	1	15	0	5	1	3	12	1	4	4	0	15	2	5	4
c	5	8	18	0	18	0	4	12	7	15	1	3	19	2	16	4	6
g	1	4	0	0	1	4	6	0	0	0	5	4	0	1	0	1	1
t	12	3	0	4	0	10	8	4	0	3	9	8	0	1	1	9	8
//