P0       A     C     G     T
1        0     0     0     3
2        0     0     0     3
3        0     3     0     0
4        0     0     3     0
5        0     2     1     0
6        0     0     3     0
7        0     0     3     0
8        3     0     0     0
9        3     0     0     0
XX
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