Pos	A	C	G	U
1	0	0	0	1
2	0	0	1	0
3	0	0.5	0	0.5
4	0	0	1	0
5	0	0	0	1
6	1	0	0	0
7	0	0	0	1
8	0	0	0	1
9	0	0.75	0	0.25
10	0	0	0	1
11	0	1	0	0
12	0	1	0	0