27  > RA7680
    1 G       0    2    0    1
    2 A       1    3    0    2
    3 T       2    4    0    3
    4 A       3    5    0    4
    5 G       4    6    0    5
    6 C       5    7    0    6
    7 T       6    8    0    7
    8 G       7    9    0    8
    9 C       8   10    0    9
   10 T       9   11    0   10
   11 G      10   12    0   11
   12 A      11   13   25   12
   13 T      12   14   24   13
   14 T      13   15   23   14
   15 T      14   16    0   15
   16 T      15   17    0   16
   17 T      16   18    0   17
   18 G      17   19    0   18
   19 G      18   20    0   19
   20 A      19   21    0   20
   21 T      20   22    0   21
   22 A      21   23    0   22
   23 A      22   24   14   23
   24 A      23   25   13   24
   25 T      24   26   12   25
   26 G      25   27    0   26
   27 T      26    0    0   27