20  ENERGY = 1.8  1
    1 A       0    2    0    1
    2 T       1    3    0    2
    3 C       2    4    0    3
    4 T       3    5    0    4
    5 A       4    6    0    5
    6 C       5    7    0    6
    7 T       6    8    0    7
    8 G       7    9    0    8
    9 G       8   10   20    9
   10 C       9   11   19   10
   11 G      10   12   18   11
   12 G      11   13    0   12
   13 C      12   14    0   13
   14 A      13   15    0   14
   15 T      14   16    0   15
   16 T      15   17    0   16
   17 T      16   18    0   17
   18 C      17   19   11   18
   19 G      18   20   10   19
   20 C      19    0    9   20