Pos	A	C	G	U
1	0.365249	0.152633	0.329486	0.152633
2	0.065279	0.065279	0.721976	0.147466
3	0.61198	0.022499	0.022499	0.343022
4	0.009104	0.009104	0.972687	0.009104
5	0.009104	0.009104	0.009104	0.972687
6	0.972687	0.009104	0.009104	0.009104
7	0.009104	0.009104	0.972687	0.009104
8	0.425516	0.098532	0.098532	0.377419